|Publication number||US7878824 B2|
|Application number||US 12/394,987|
|Publication date||Feb 1, 2011|
|Filing date||Feb 27, 2009|
|Priority date||Feb 27, 2009|
|Also published as||US20100221950|
|Publication number||12394987, 394987, US 7878824 B2, US 7878824B2, US-B2-7878824, US7878824 B2, US7878824B2|
|Inventors||Paul John Pepe, Sheldon Easton Muir|
|Original Assignee||Tyco Electronics Corporation|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (64), Non-Patent Citations (3), Referenced by (7), Classifications (15), Legal Events (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This application is related to copending U.S. patent application titled “CASSETTE FOR A CABLE INTERCONNECT SYSTEM”, having Ser. No. 12/394,816 and filed Feb. 27, 2009, the subject matter of which is herein incorporated by reference in its entirety.
The subject matter herein relates generally to cable interconnect systems, and more particularly, to cassettes that have shielded plug cavities.
Known connector assemblies exist having multiple receptacles in a common housing, which provide a compact arrangement of such receptacles. Such a connector assembly is useful to provide multiple connection ports. Accordingly, such a connector assembly is referred to as a multiple port connector assembly. The receptacles may be in the form of RJ-45 type modular jacks that establish mating connections, with corresponding RJ-45 modular plugs. The receptacles, each have electrical terminals arranged in a terminal array, and have plug receiving cavities.
One application for such connector assemblies is in the field of computer networks, where desktops or other equipment are interconnected to servers or other network components by way of sophisticated, cabling. Such networks have a variety of data transmission mediums including coaxial cable, fiber optic cable and telephone cable. One such network topography is known as the Ethernet network, which is subject to various electrical standards, such as IEEE 802.3 and others. Such networks have the requirement to provide a high number of distributed connections, yet optimally requires little space in which to accommodate the connections. Another application for such connector assemblies is in the field of telephony, wherein the connection ports allow connection with a telephone switching network of a telephone service provider, such as a regional telephone company or national telephone company.
One type of connector assembly is the connector assemblies, the housing has receptacle connectors one above the other, forming a plurality of arrays in stacked arrangement, so-called “stacked jack” arrangements. One example of a stacked jack type of connector assembly is disclosed in U.S. Pat. No. 6,655,988, assigned to Tyco Electronics Corporation, which discloses an insulative housing having two rows of receptacles that is; plug cavities. The receptacles are arranged side-by-side in an upper row and side-by-side in a lower row in a common housing, which advantageously doubles the number of receptacles without having to increase the length of the housing. The insulative housing includes an outer shield that surrounds the unit. Stacked jacks have the advantage of coupling a plurality of receptacles within a network component in a compact arrangement. However, typical stacked jacks only provide the outer shield to electrically isolate the connector assembly from other components within the system, such as adjacent connector assemblies. Shielding is not provided between each of the receptacles. As connector assemblies are driven towards higher performance, the shielding provided with known connector assemblies is proving ineffective.
Another type of connector assembly includes a plurality of individual modular jacks that are mounted within a housing to form an interface connector. Each modular jack includes a jack housing defining a plug cavity and a plurality of contacts within the plug cavity. The interface connector, including a number of the modular jacks, may be mounted to a corresponding network component. At least some known connector assemblies of this type utilize shielded modular jacks, wherein each modular jack is separately shielded and installed in the housing. While interface connectors have the advantage of coupling a plurality of modular jacks within a network component in a single arrangement, incorporating individual modular jacks have the problem of limited density. The density problem arises from each modular jack having a separate jack housing, which may be bulky. The density problem is exaggerated when shielded modular jacks are used as the shielded modular jacks are even larger than non-shielded modular jacks.
At least one of the problems with known connector assemblies is that current networks are requiring a higher density of connections. Additionally to meet performance requirements, shielding is required between adjacent plug cavities that are in close proximity. Some connector assemblies that are shielded are known to be bulky, which reduces the density per linear inch.
In one embodiment, a cassette is provided that includes a housing having a plurality of plug cavities that are separated from adjacent plug cavities by shield elements. The cassette also includes a contact subassembly having a circuit board and a plurality of contacts arranged in contact sets coupled to the circuit board. The contact sets are configured to mate with different plugs. The contact subassembly is loaded into the housing such that the contact sets are received in different plug cavities, wherein the contact sets are separated from adjacent contact sets by the shield elements.
Optionally, the housing may include metal walls between the plug cavities, where the metal walls define the shield elements. The housing may be diecast and include a plurality of walls that form the plug cavities and define the shield elements. The housing may be metallized to define the shield elements between the plug cavities. Optionally, the shield elements may be arranged along the surfaces defining the plug cavities, and the shield elements may be configured to engage the plugs when the plugs are loaded into the plug cavities.
In another embodiment, a cassette is provided including a housing having a plurality of plug cavities arranged in a stacked configuration in a first row and a second row. The plug cavities are defined by interior walls separating adjacent plug cavities, and the plug cavities are separated from adjacent plug cavities by shield elements being at least one of defined by, provided on and provided in the interior walls separating the plug cavities. The cassette also includes a contact subassembly having a circuit board and a plurality of contacts arranged in contact sets coupled to the circuit board. The contact sets are configured to mate with different plugs, and the contact subassembly is loaded into the rear chamber such that the contact sets are received in different plug cavities. The contact sets are separated from adjacent contact sets by the shield elements.
In a further embodiment, a cassette is provided that includes a housing having a front and a rear. The housing is configured to be received within an opening of a grounded panel. The housing has a plurality of plug cavities being open at the front for receiving plugs therein. The plug cavities are separated from adjacent plug cavities by shield elements. A bond bar is coupled to the housing and is configured to be electrically connected to the grounded panel to define a ground path between the panel and the shield elements. The cassette also includes a contact subassembly received in the housing and having a circuit board and a plurality of contacts arranged in contact sets received in different plug cavities. The contact sets are separated from adjacent contact sets by the grounded shield elements.
The cable interconnect system 10 is utilized to interconnect various equipment, components and/or devices to one another.
The cassette 20 includes a shell 28 defining an outer perimeter of the cassette 20. In an exemplary embodiment, the shell 28 is a two piece design having a housing 30 and a cover 32 that may be coupled to the housing 30. The housing 30 and the cover 32 may have similar dimensions (e.g. height and width) to nest with one another to define a smooth outer surface. The housing 30 and the cover 32 may also have similar lengths, such that the housing 30 and the cover 32 mate approximately in the middle of the shell 28. Alternatively, the housing 30 may define substantially all of the shell 28 and the cover 32 may be substantially flat and be coupled to an end of the housing 30. Other alternative embodiments may not include the cover 32.
The housing 30 includes a front 34 and a rear 36. The cover 32 includes a front 38 and a rear 40. The front 34 of the housing 30 defines a front of the cassette 20 and the rear 40 of the cover 32 defines a rear of the cassette 20. In an exemplary embodiment, the cover 32 is coupled to the housing 30 such that the rear 36 of the housing 30 abuts against the front 38 of the cover 32.
The housing 30 includes a plurality of plug cavities 42 open at the front 34 of the housing 30 for receiving the modular plugs 14 (shown in
The cassette 20 includes latch members 48 on one or more sides of the cassette 20 for securing the cassette 20 to the panel 12. The latch members 48 may be held close to the sides of the cassette 20 to maintain a smaller form factor. Alternative mounting means may be utilized in alternative embodiments. The latch members 48 may be separately provided from the housing 30 and/or the cover 32. Alternatively, the latch members 48 may be integrally formed with the housing 30 and/or the cover 32.
During assembly, the cassettes 20 are loaded into the openings 22 of the panel 12 from the front of the panel 12, such as in the loading direction illustrated in
As will be described in further detail below, the rear mating connectors 70 are high density connectors, that is, each rear mating connector 70 is electrically connected to more than one of the receptacles 16 (shown in
The cassette 20 includes an interface connector assembly 120 that includes the rear mating connectors 70. The interface connector assembly 120 is configured to be mated with the electrical connector 106. In an exemplary embodiment, the interface connector assembly 120 includes a circuit board 122. The rear mating connectors 70 are mounted to a side surface 124 of the circuit board 122. In an exemplary embodiment, the circuit board 122 includes a plurality of edge contacts 126 along an edge 128 of the circuit board 122. The edge contacts 126 may be mated with the contacts 110 of the contact subassembly 100 by plugging the edge 128 of the circuit board 122 into the opening 108 of the electrical connector 106. The edge contacts 126 are electrically connected to the rear mating connectors 70 via the circuit board 122. For example, traces may be provided on or in the circuit board 122 that interconnect the edge contacts 126 with the rear mating connectors 70. The edge contacts 126 may be provided on one or more sides of the circuit board 122. The edge contacts 126 may be contact pads formed on the circuit board 122. Alternatively, the edge contacts 126 may extend from at least one of the surfaces and/or the edge 128 of the circuit board 122. In alternative embodiment, rather than using edge contacts 126, the interface connector assembly 120 may include an electrical connector at, or proximate to, the edge 128 for mating with the electrical connector 106 of the contact subassembly 100.
The contacts 144 are arranged in contact sets 146 with each contact set 146 defining a portion of a different receptacle 16 (shown in
In an exemplary embodiment, the contact subassembly 100 includes a plurality of contact supports 152 extending from the front side 140 of the circuit board 104. The contact supports 152 are positioned in close proximity to respective contact sets 146. Optionally, each contact support 152 supports the contacts 144 of a different contact set 146. In the illustrated embodiment, two rows of contact supports 152 are provided. A gap 154 separates the contact supports 152. Optionally, the gap 154 may be substantially, centered between the top 148 and the bottom 150 of the circuit board 104.
During assembly, the contact subassembly 100 is loaded into the housing 30 (shown in
In an exemplary embodiment, the housing 30 includes a rear chamber 102 (shown in
In an exemplary embodiment, the plug cavities 42 are separated from adjacent plug cavities 42 by shield elements 172. The shield elements 172 may be defined by the interior walls 160 and/or exterior walk 174 of the housing 30. For example, the housing 30 may be fabricated from a metal material with the interior walls 160 and/or the exterior walls 174 also fabricated from the metal material. In an exemplary embodiment, the housing 30 is diecast using a metal or metal alloy, such as aluminum or an aluminum alloy. With the entire housing 30 being metal, the housing 30, including portion of the housing 30 between the plug cavities 42 (e.g. the interior walls 160) and the portion of the housing 30 covering the plug cavities 42 (e.g. the exterior walls 174), operates to provide shielding around the plug cavities 42. In such an embodiment, the housing 30 itself defines the shield elements(s) 172. The plug cavities 42 may be completely enclosed (e.g. circumferentially surrounded) by the shield elements 172.
With each contact set 146 (shown in
In an alternative embodiment, rather than the housing 30 being fabricated from a metal material, the housing 30 may be fabricated, at least in part, from a dielectric material. Optionally, the housing 30 may be selectively metallized, with the metallized portions defining the shield elements 172. For example, at least a portion of the housing 30 between the plug cavities 42 may be metallized to define the shield elements 172 between the plug cavities 42. Portions of the interior walls 160 and/or the exterior walls 174 may be metallized. The metallized surfaces define the shield elements 172. As such, the shield elements 172 are provided on the interior walls 160 and/or the exterior walls 174. Alternatively, the shield elements 172 may be provided on the interior walls 160 and/or the exterior walls 174 in a different manner, such as by plating or by coupling separate shield elements 172 to the interior walls 160 and/or the exterior walls 174. The shield elements 172 may be arranged along the surfaces defining the plug cavities 42 such that at least some of the shield elements 172 engage the modular plugs 14 when the modular plugs 14 are loaded into the plug cavities 42. In other alternative embodiments, the walls 160 and/or 174 may be formed, at least in part, by metal filler materials provided within or on the walls 160 and/or 174 or metal fibers provided within or on the walls 160 and/or 174.
In another alternative embodiment, rather than, or in addition to, providing the shield elements 172 on the walls of the housing 30, the shield elements 172 may be provided within the walls of the housing 30. For example, the interior walls 160 and/or the exterior walls 174 may include openings 176 that are open at the rear 36 and/or the front 34 such that the shield elements 172 may be loaded into the openings 170. The shield elements 172, may be separate metal components, such as plates, that are loaded into the openings 176. The openings 176, and thus the shield elements 172, are positioned between the plug cavities 42 to provide shielding between adjacent contact sets 146.
During assembly, the interface connector assembly 120 is mated with the electrical connector 106. Optionally, the interface connector assembly 120 may be mated with the electrical connector 106 after the contact subassembly 100 is loaded into the housing 30. Alternatively, both the contact subassembly 100 and the interface connector assembly 120 may be loaded into the housing 30 as a unit. Optionally, some or all of the interface connector assembly 120 may be positioned rearward of the housing 30.
The cover 32 is coupled to the housing 30 after the contact subassembly 100 and the interface connector assembly 120 are positioned with respect to the housing 30. The cover 32 is coupled to the housing 30 such that the cover 32 surrounds the interface connector assembly 120 and/or the contact subassembly 100. In an exemplary embodiment, when the cover 32 and the housing 30 are coupled together, the cover 32 and the housing 30 cooperate to define an inner chamber 170 (shown in
When assembled, the plug cavities 42 and the contact sets 146 cooperate to define the receptacles 16 for mating with the modular plugs 14 (shown in
Each of the contacts 144 extend between a tip 180 and a base 182 generally along a contact plane 184 (shown in
In an exemplary embodiment, the circuit board 104 is generally perpendicular to the contact plane 184 and the plug axis 178. The top 148 of the circuit board 104 is positioned near a top side 186 of the housing 30, whereas the bottom 150 of the circuit board 104 is positioned near a bottom side 188 of the housing 30. The circuit board 104 is positioned generally behind the contacts 144, such as between the contacts 144 and the rear 36 of the housing 30. The circuit board 104 substantially covers the rear of each of the plug cavities 42 when the connector subassembly 100 is loaded into the rear chamber 102. In an exemplary embodiment, the circuit board 104 is positioned essentially equidistant from the mating interface 185 of each of the contacts 144. As such, the contact length between the mating interface 185 and the circuit board 104 is substantially similar for each of the contacts 144. Each of the contacts 144 may thus exhibit similar electrical characteristics. Optionally, the contact length may be selected such that the distance between a mating interface 185 and the circuit board 104 is reasonably short. Additionally, the contact lengths of the contacts 144 in the upper row 44 (shown in
The electrical connector 106 is provided on the rear side 142 of the circuit board 104. The electrical connector 106 is electrically connected to the contacts 144 of one or more of the contacts sets 146. The interface connector assembly 120 is mated with the electrical connector 106. For example, the circuit board 122 of the interface connector assembly 120 is loaded into the opening 108 of the electrical connector 106. The rear mating connectors 70, which are mounted to the circuit board 122, are electrically connected to predetermined contacts 144 of the contacts sets 146 via the circuit board 122, the electrical connector 106 and the circuit board 104. Other configurations are possible to interconnect the rear mating connectors 70 with, the contacts 44 of the receptacles 16.
The bond bar 300 includes a cassette interface 312 on one side of the body 302 and a panel interface 314 on the opposite side of the body 302. The cassette interface 312 is inward facing, such as in a direction that generally faces the housing 30. The cassette interface 312 is configured to engage and electrically connect to the cassette 20. Optionally, the cassette interface 312 engages the housing 30. The panel interface 314 is outward facing such as in a direction that generally faces away from housing 30. The panel interface 314 may be defined by the flexible beams 304 and/or the body 302. The panel interface 314 is configured to engage and electrically connected to the panel 12 (shown in
The flexible beams 304 may be forced generally inwardly when the cassette 20 is installed and/or mounted within the panel 12. For example, during loading of the cassette 20 into the panel opening 22, the flexible beams 304 engage the panel 12. The flexible beams 304 may define spring-like elements to provide a normal force against the panel 12 when the cassette 20 is mounted to the panel 12. The panel 12 forces the flexible beams 304 to flatten out. Because the flexible beams 304 are resilient, the flexible beams 304 bias against the perimeter wall 24 of the opening 22. The flexible beams 304 thus maintain contact with the panel 12. Optionally, the panel 12 may additionally engage the body 302 of the bond bar 300.
Since the cassette 20, the bond bar 300 and the panel are conductive/metallic, the bond bar 300 provides a bond path or interface between the panel 12 and the cassette 20. The bond path makes an electrical connection between the components. Optionally, when one of the components (e.g. the panel 12) is taken to ground (e.g. electrically grounded), then the bond path defines a ground path between the components. The bond bar 300 makes a secure mechanical and electrical connection between the panel 12 and the cassette 20 by using the flexible beams 304. In an exemplary embodiment, when shield elements 172 (shown in
The shield elements 342 are plates that are configured to be positioned between adjacent plug cavities 348 of the housing 340. Optionally, each of the shield elements 342 may be integrally formed with one another as part of a one-piece structure that is loaded into the openings 346. Alternatively, the shield elements 342 may be separate from one another and separately loaded into the openings 346. The separate shield elements 342 may be electrically connected to one another. The shield elements 342 contact the bond bar 344 to electrically connect the bond bar 344 to the shield elements 342. Optionally, the bond bar 344 may include flexible fingers 350 that engage the shield elements 342 to maintain contact therebetween.
A cassette 20 is thus provided that may be mounted to a panel 12 through an opening 22 in the panel 12. The panel 12 may be electrically connected to ground. Optionally, a bond bar 300 may be provided between the cassette 20 and the panel 12 to provide a bond path between the panel 12 and the cassette 20. The cassette 20 may be grounded when the panel 12 is grounded. The cassette 20 includes a plurality of receptacles 16 that are configured to receive modular plugs 14 therein. The receptacles 16 are separated from adjacent receptacles 16 by shield elements 172 being either defined by, provided on, or provided in the inner walls 160 separating the plug cavities 42. The receptacles 16 are thus shielded from adjacent receptacles 16, which may increase the performance of the cassette 20. For example, shield effectiveness may be increased by providing the shield elements between adjacent receptacles 16. Additionally, alien crosstalk may be reduced between the contacts 144 of adjacent receptacles 16.
It is to be understood that the above description is intended to be illustrative, and not restrictive. For example, the above-described embodiments (and/or aspects thereof) may be used in combination with each other. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Dimensions, types of materials, orientations of the various components, and the number and positions of the various components described herein are intended to define parameters of certain embodiments, and are by no means limiting and are merely exemplary embodiments. Many other embodiments and modifications within the spirit and scope of the claims will be apparent to those of skill in the art upon reviewing the above description. The scope of the invention should, therefore, be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. In the appended claims, the terms “including” and “in which” are used as the plain-English equivalents of the respective terms “comprising” and “wherein.” Moreover, in the following claims, the terms “first,” “second,” and “third,” etc. are used merely as labels, and are not intended to impose numerical requirements on their objects. Further, the limitations of the following claims are not written in means—plus-function format and are not intended to be interpreted based on 35 U.S.C. §112, sixth paragraph, unless and until such claim limitations expressly use the phrase “means for” followed by a statement of function void of further structure.
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|U.S. Classification||439/95, 439/607.02, 439/607.03, 439/607.53|
|Cooperative Classification||H01R24/64, H01R13/40, H01R23/6873, H01R13/506, H01R13/518|
|European Classification||H01R13/40, H01R23/02B, H01R13/506, H01R13/518, H01R23/68D|
|Feb 27, 2009||AS||Assignment|
Owner name: TYCO ELECTRONICS CORPORATION, PENNSYLVANIA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PEPE, PAUL JOHN;MUIR, SHELDON EASTON;SIGNING DATES FROM 20090225 TO 20090226;REEL/FRAME:022325/0404
|Aug 1, 2014||FPAY||Fee payment|
Year of fee payment: 4
|Jul 7, 2015||AS||Assignment|
Owner name: TYCO ELECTRONICS SERVICES GMBH, SWITZERLAND
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TYCO ELECTRONICS CORPORATION;REEL/FRAME:036074/0740
Effective date: 20150410
|Oct 26, 2015||AS||Assignment|
Owner name: COMMSCOPE EMEA LIMITED, IRELAND
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TYCO ELECTRONICS SERVICES GMBH;REEL/FRAME:036956/0001
Effective date: 20150828
|Oct 29, 2015||AS||Assignment|
Owner name: COMMSCOPE TECHNOLOGIES LLC, NORTH CAROLINA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:COMMSCOPE EMEA LIMITED;REEL/FRAME:037012/0001
Effective date: 20150828
|Jan 13, 2016||AS||Assignment|
Owner name: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT, IL
Free format text: PATENT SECURITY AGREEMENT (TERM);ASSIGNOR:COMMSCOPE TECHNOLOGIES LLC;REEL/FRAME:037513/0709
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Effective date: 20151220


1 minute read
Parmley Technologies Ltd and Marl International Ltd work together to fit Marl's Panel Indicator LEDs to Parmley Control Panels.
For almost 20 years Parmley Technologies Ltd, managed by MD Derek Parmley, have been specialising in high quality, high reliability customer solutions including on site Design and Rapid Prototyping, to full Manufacturing of PCB’s and Electronic Control Products for Military Vehicles and other harsh environments. Parmley currently have over 300 different types of control panels installed on Military Vehicles in the UK, USA, and Europe.
Marl provide Parmley Technologies with our 612 Series Panel Indicator LEDs. Offering outstanding reliability, sealed to IP67 and ruggedized, these indicators are ideal for military and high vibration applications. Suitable for status panel indication with a smoked lens providing a wide viewing angle, this product offers good on/off contrast ratio. The 612 Series is a small ø6.35mm (quarter inch) mounting indicator available in a range of colour and voltage options, with or without flying leads.
Parmley Technologies Ltd continue to work with military applications and are currently supporting the development of Counter Drone technology with electronic design of control panels, assembly, and test.
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Quantum mechanics and Einstein's theory of general relativity are both extremely accurate theories of how the universe works, but all attempts to combine the two into a unified theory have ended in failure.
When physicists try to calculate the properties of a quantum theory of gravity, they find quantities that become infinite -- infinities that are so bad they can't be removed by mathematical gambits that work in other areas of physics.
Now, Zvi Bern, John Carrasco, and Henrik Johanssen at UCLA, Lance Dixon at the Stanford Linear Accelerator Center, and Radu Roiban at Pennsylvania State University have found a way to carry out a new set of gravity calculations with the help of an older theory that has been known since the 1980s to be finite.
Their new results are reported in Physical Review Letters (http://prl.aps.org) and highlighted in a commentary by Hermann Nicolai at the Max Planck Institute for Gravitational Physics in Potsdam, Germany, in Physics (http://physics.aps.org).
Previous attempts at removing the fatal infinities in quantum gravity calculations collapsed when researchers discovered that you would need an infinite number of parameters. The problem stems from the point-like and thus infinitesimally small fundamental particles in the theories, so some physicists have developed string theory as a possible approach: instead of point particles, the fundamental entities are vibrating loops of string. But string theory is beset with its own difficulties, as it lays out a "landscape" of possibilities with an astronomical number of scenarios.
The new paper by Bern et al. shows that by combining desirable aspects of string theory and point-like particles, they can use cancellations in the calculations - done with the help of graphical computational methods called Feynman diagrams (and later elaborations) - to escape the problem of infinities. While not a solution to the problem of quantum gravity, nor a result that knocks string theory aside, the findings of Bern et al. show that theories thought to be dead ends may still show the way forward.
Also in Physics this week:
Cosmic alchemy in the laboratory
Advances in experimental techniques that measure nuclear reactions that occur in stars are opening new opportunities for understanding the stellar and chemical evolution of our Universe.
About APS Physics
APS Physics (http://physics.aps.org) publishes expert written commentaries and highlights of papers appearing in the journals of the American Physical Society
Electrocatalysis can advance green transition
23.01.2017 | Technical University of Denmark
Quantum optical sensor for the first time tested in space – with a laser system from Berlin
23.01.2017 | Ferdinand-Braun-Institut Leibniz-Institut für Höchstfrequenztechnik
For the first time ever, a cloud of ultra-cold atoms has been successfully created in space on board of a sounding rocket. The MAIUS mission demonstrates that quantum optical sensors can be operated even in harsh environments like space – a prerequi-site for finding answers to the most challenging questions of fundamental physics and an important innovation driver for everyday applications.
According to Albert Einstein's Equivalence Principle, all bodies are accelerated at the same rate by the Earth's gravity, regardless of their properties. This...
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
19.01.2017 | Event News
10.01.2017 | Event News
09.01.2017 | Event News
23.01.2017 | Health and Medicine
23.01.2017 | Physics and Astronomy
23.01.2017 | Process Engineering


USD 44.10 billion
Report ID: SQMIG45A2067 | Region: Global | Published Date: May, 2023 | Pages: 157 | Tables: 63 | Figures: 75
Global Video surveillance Market size was valued at USD 44.10 billion in 2021 and is poised to grow from USD 48.20 billion in 2022 to USD 98.18 billion by 2030, at a CAGR of 9.3% during the forecast period (2023-2030).
The global video surveillance market is expected to witness notable growth owing to the increasing need for security solutions and advancements in technology. The market is expected to experience significant growth in the Asia-Pacific region, particularly in China and India, due to the increasing adoption of video surveillance systems in various sectors. The major trends in the video surveillance market is the increasing adoption of intelligent security systems. Video analytics software can be used to detect suspicious behavior and events, and alert security personnel in real-time.
The adoption of cloud-based video surveillance solutions is also increasing, as it allows for remote monitoring and management of video surveillance systems. The use of video surveillance systems has also raised concerns over privacy violations and civil liberties. The need for strict privacy regulations and cyber-security measures to protect video surveillance systems from cyber-attacks is becoming increasingly important. The video surveillance market is expected to continue growing due to the increasing need for security solutions and advancements in technology. However, the market will also face challenges related to privacy concerns and the need for cyber-security measures. The adoption of intelligent security systems and the growing trend of smart cities and homes are expected to create new opportunities in the market.
Global Market Size
USD 44.10 billion
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The global video surveillance market is segmented on the basis of offering, system, and region. In terms of offering, the market is segmented into hardware, software, and service. Based on system, the market is segmented into analog video surveillance systems, IP video surveillance systems, hybrid Video Surveillance Systems. By region, the market is segmented into North America, Europe, Asia Pacific, Middle East and Africa, and Latin America.
Global Video surveillance Market Analysis by Offering
The hardware segment includes surveillance cameras, which can be further categorized into analog cameras, IP cameras, and wireless cameras. Analog cameras are the traditional cameras that capture and transmit video signals via coaxial cables. IP cameras are digital cameras that transmit video signals over an IP network. Wireless cameras are connected to a wireless network and transmit video signals wirelessly. Other hardware components include recorders, such as digital video recorders (DVRs) and network video recorders (NVRs), and storage devices, such as hard disk drives (HDDs) and solid-state drives (SSDs). The software segment includes video management software, which enables the management and control of video surveillance systems, and video analytics software, which analyzes video data to detect and alert users of suspicious behavior and events. Other software solutions include facial recognition software, license plate recognition software, and object detection software. The services segment includes installation and maintenance services, which are provided by vendors to ensure the proper installation and functioning of video surveillance systems. Consulting services are provided to help customers choose the right video surveillance solutions for their specific needs. Other professional services include system integration and customization services.
Global Video surveillance Market Analysis by System
Analog video surveillance systems consist of analog cameras, DVRs, and other analog components. Analog cameras capture and transmit video signals via coaxial cables to a DVR, which records and stores the video footage. Analog video surveillance systems are typically used in small businesses and residential settings due to their low cost and reliability. IP video surveillance systems consist of IP cameras, NVRs, and other digital components. IP cameras capture and transmit digital video signals over an IP network to an NVR, which records and stores the video footage. IP video surveillance systems offer higher image quality and advanced features, such as remote viewing and video analytics. IP video surveillance systems are typically used in large businesses, government facilities, and other high-security settings. Hybrid video surveillance systems combine analog and IP cameras and offer a cost-effective way to upgrade existing analog systems. Hybrid systems can also integrate with other security systems, such as access control and fire alarms. Hybrid video surveillance systems are typically used in medium-sized businesses and organizations that want to upgrade their existing video surveillance systems without incurring high costs.
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Asia Pacific market is expected to dominate the global video surveillance market, with China holding a major share. The Chinese government has taken active initiatives to promote the use of surveillance systems, including the 'Sharp Eyes' project and the completion of the 'Skynet video surveillance program' which is the world's largest video-surveillance network. These initiatives are likely to drive the growth of the video surveillance market in the region.
North America in the video surveillance market is also expected to experience significant growth in the coming years due to increasing external and internal human threats. Many cities in the United States have already adopted advanced surveillance systems, such as the deployment of facial recognition cameras by the local police to identify and arrest protestors during the Baltimore riots.
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Global Video surveillance Market Drivers
Emergence of AI Surveillance Technology Would Ensure to Drive Growth
Growing Adoption of Body-worn Cameras to Drive Growth
Global Video surveillance Market Restraints
Privacy and Security Concerns Regarding Video Data
High Installation and Maintenance Costs
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The global video surveillance market is highly competitive, with several key players dominating the market. These companies focus on product innovation, strategic partnerships, and mergers and acquisitions to maintain their market position and expand their product portfolios. The competitive landscape of the global video surveillance market is expected to remain intense, with key players focusing on product innovation, strategic partnerships, and mergers and acquisitions to gain a competitive edge in the market.
Top Player’s Company Profiles in Global Video surveillance Market
Global Video surveillance Market Recent Developments
SkyQuest’s ABIRAW (Advanced Business Intelligence, Research & Analysis Wing) is our Business Information Services team that Collects, Collates, Correlates, and Analyzes the Data collected by means of Primary Exploratory Research backed by robust Secondary Desk research.
According to our global video surveillance market analysis, the increasing security concerns, advancements in technology, and growing demand for surveillance systems in emerging economies are likely to augment growth. Here's a detailed analysis of the market. Analog video surveillance systems accounted for the largest share of the market in 2020, due to their low cost and ease of installation. The IP video surveillance systems segment is expected to witness significant growth during the forecast period, owing to their ability to provide high-definition video and better scalability. The video surveillance market is expected to continue its growth trajectory in the coming years, driven by increasing security concerns and advancements in technology. The market is highly competitive, with several players operating in the market, and is expected to witness significant growth in emerging economies such as Asia Pacific.
|Market size value in 2021||USD 44.10 billion|
|Market size value in 2030||USD 48.20 billion|
|Forecast Unit (Value)||USD Billion|
|Regions covered||North America (US, Canada), Europe (Germany, France, United Kingdom, Italy, Spain, Rest of Europe), Asia Pacific (China, India, Japan, Rest of Asia-Pacific), Latin America (Brazil, Rest of Latin America), Middle East & Africa (South Africa, GCC Countries, Rest of MEA)|
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Parent Market Analysis
KEY MARKET INSIGHTS
MARKET DYNAMICS & OUTLOOK
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For the Global Video Surveillance Market, our research methodology involved a mixture of primary and secondary data sources. Key steps involved in the research process are listed below:
1. Information Procurement: This stage involved the procurement of Market data or related information via primary and secondary sources. The various secondary sources used included various company websites, annual reports, trade databases, and paid databases such as Hoover's, Bloomberg Business, Factiva, and Avention. Our team did 45 primary interactions Globally which included several stakeholders such as manufacturers, customers, key opinion leaders, etc. Overall, information procurement was one of the most extensive stages in our research process.
2. Information Analysis: This step involved triangulation of data through bottom-up and top-down approaches to estimate and validate the total size and future estimate of the Global Video Surveillance Market.
3. Report Formulation: The final step entailed the placement of data points in appropriate Market spaces in an attempt to deduce viable conclusions.
4. Validation & Publishing: Validation is the most important step in the process. Validation & re-validation via an intricately designed process helped us finalize data points to be used for final calculations. The final Market estimates and forecasts were then aligned and sent to our panel of industry experts for validation of data. Once the validation was done the report was sent to our Quality Assurance team to ensure adherence to style guides, consistency & design.
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Product ID: SQMIG45A2067


There are two main algorithmic approaches to sparse signal ecovery: geometric and combinatorial. The geometric approach starts with a geometric constraint on the measurement matrix Phi and then uses linear programming to decode information about x from Phi x. The combinatorial approach constructs Phi and a
combinatorial decoding algorithm to match.
We present a unified approach to these two classes of sparse signal recovery algorithms. The unifying elements are the adjacency
matrices of high-quality unbalanced expanders. We generalize the notion of Restricted Isometry Property (RIP), crucial to compressed
sensing results for signal recovery, from the Euclidean norm to the ell-p norm for p approximately 1, and then show that unbalanced expanders are essentially equivalent to RIP-p matrices. From known deterministic constructions for such matrices, we obtain new deterministic measurement matrix constructions and algorithms
for signal recovery which, compared to previous deterministic algorithms, are superior in either the number of measurements or in noise tolerance.
Authors: R. Berinde, A. C. Gilbert, P. Indyk, H. Karloff, and M. J. Strauss