GB2157912B - Video signal transmission systems - Google Patents
Video signal transmission systemsInfo
- Publication number
- GB2157912B GB2157912B GB08510050A GB8510050A GB2157912B GB 2157912 B GB2157912 B GB 2157912B GB 08510050 A GB08510050 A GB 08510050A GB 8510050 A GB8510050 A GB 8510050A GB 2157912 B GB2157912 B GB 2157912B
- Authority
- GB
- United Kingdom
- Prior art keywords
- video signal
- signal transmission
- transmission systems
- systems
- video
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000008054 signal transmission Effects 0.000 title 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19665—Details related to the storage of video surveillance data
- G08B13/19676—Temporary storage, e.g. cyclic memory, buffer storage on pre-alarm
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing (AREA)
- Closed-Circuit Television Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8410337 | 1984-04-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8510050D0 GB8510050D0 (en) | 1985-06-26 |
GB2157912A GB2157912A (en) | 1985-10-30 |
GB2157912B true GB2157912B (en) | 1987-05-07 |
Family
ID=10559931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08510050A Expired GB2157912B (en) | 1984-04-19 | 1985-04-19 | Video signal transmission systems |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2157912B (en) |
IT (1) | IT1199875B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4918523A (en) * | 1987-10-05 | 1990-04-17 | Intel Corporation | Digital video formatting and transmission system and method |
FR2673060B1 (en) * | 1991-02-19 | 1993-06-04 | Matra Communication | VISUAL SPEAKER TERMINAL. |
-
1985
- 1985-04-18 IT IT67366/85A patent/IT1199875B/en active
- 1985-04-19 GB GB08510050A patent/GB2157912B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB8510050D0 (en) | 1985-06-26 |
IT1199875B (en) | 1989-01-05 |
GB2157912A (en) | 1985-10-30 |
IT8567366A0 (en) | 1985-04-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20010419 |