GB8912862D0 - Image data transmitting systems - Google Patents
Image data transmitting systemsInfo
- Publication number
- GB8912862D0 GB8912862D0 GB898912862A GB8912862A GB8912862D0 GB 8912862 D0 GB8912862 D0 GB 8912862D0 GB 898912862 A GB898912862 A GB 898912862A GB 8912862 A GB8912862 A GB 8912862A GB 8912862 D0 GB8912862 D0 GB 8912862D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- image data
- data transmitting
- transmitting systems
- systems
- image
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00095—Systems or arrangements for the transmission of the picture signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32358—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device using picture signal storage, e.g. at transmitter
- H04N1/32363—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device using picture signal storage, e.g. at transmitter at the transmitter or at the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N1/32358—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device using picture signal storage, e.g. at transmitter
- H04N1/32491—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device using picture signal storage, e.g. at transmitter alternate storage in and retrieval from two parallel memories, e.g. using ping-pong buffers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/64—Systems for the transmission or the storage of the colour picture signal; Details therefor, e.g. coding or decoding means therefor
- H04N1/646—Transmitting or storing colour television type signals, e.g. PAL, Lab; Their conversion into additive or subtractive colour signals or vice versa therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/64—Systems for the transmission or the storage of the colour picture signal; Details therefor, e.g. coding or decoding means therefor
- H04N1/648—Transmitting or storing the primary (additive or subtractive) colour signals; Compression thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/917—Television signal processing therefor for bandwidth reduction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/797—Processing of colour television signals in connection with recording for recording the signal in a plurality of channels, the bandwidth of each channel being less than the bandwidth of the signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
- H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
- H04N2201/3285—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device using picture signal storage, e.g. at transmitter
- H04N2201/3287—Storage of at least one complete document page or image frame
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63147346A JP2906412B2 (en) | 1988-06-15 | 1988-06-15 | Transmission method of image data |
JP14734788A JP2913642B2 (en) | 1988-06-15 | 1988-06-15 | Transmission method of image data |
JP63289524A JPH02134787A (en) | 1988-11-16 | 1988-11-16 | Recorder |
JP63293219A JPH02137593A (en) | 1988-11-18 | 1988-11-18 | Transmitting and recording device and reproducing device for picture signal |
Publications (2)
Publication Number | Publication Date |
---|---|
GB8912862D0 true GB8912862D0 (en) | 1989-07-26 |
GB2219906A GB2219906A (en) | 1989-12-20 |
Family
ID=27472778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8912862A Withdrawn GB2219906A (en) | 1988-06-15 | 1989-06-05 | Image data transmitting systems |
Country Status (4)
Country | Link |
---|---|
KR (1) | KR910002286A (en) |
DE (1) | DE3919302A1 (en) |
FR (1) | FR2633131A1 (en) |
GB (1) | GB2219906A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5532820A (en) * | 1990-08-17 | 1996-07-02 | Samsung Electronics Co., Ltd. | Digital modulators for use with sub-nyquist sampling of raster-scanned samples of image intensity |
DE4426935A1 (en) * | 1994-07-29 | 1996-02-01 | Rohde & Schwarz | Digital residual sideband modulator for video signals |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2676204A (en) * | 1952-02-14 | 1954-04-20 | Nederlanden Staat | Pulse demodulating circuit |
US3588330A (en) * | 1967-12-21 | 1971-06-28 | John H Clark | Facsimile signal modification reducing the information channel bandwidth |
US3517117A (en) * | 1968-01-24 | 1970-06-23 | Southern Pacific Transport Co | Bandwidth reduction coding technique |
US3538246A (en) * | 1968-05-22 | 1970-11-03 | Southern Pacific Transport Co | Bandwidth reduction technique for analog signals |
US3761610A (en) * | 1971-02-16 | 1973-09-25 | Graphics Sciences Inc | High speed fascimile systems |
DE2236882A1 (en) * | 1971-07-29 | 1973-02-15 | Fuji Xerox Co Ltd | CIRCUIT FOR REDUCING THE BANDWIDTH OF AN INFORMATION SIGNAL |
NL168099C (en) * | 1974-09-12 | 1982-02-16 | Philips Nv | MODULATION AND FILTER DEVICE FOR DIGITAL SIGNALS. |
US4003003A (en) * | 1975-11-18 | 1977-01-11 | Haeberlin Allen L | Multichannel digital synthesizer and modulator |
GB2101846B (en) * | 1981-06-11 | 1985-06-12 | Racal Vadic Inc | Switch capacitor modulator |
EP0078857B1 (en) * | 1981-11-05 | 1986-04-30 | Hewlett-Packard Company | Digital amplitude modulating circuitry |
US4504803A (en) * | 1982-06-28 | 1985-03-12 | Gte Lenkurt, Incorporated | Switched capacitor AM modulator/demodulator |
CA1214277A (en) * | 1982-12-07 | 1986-11-18 | Josef Dirr | Method for the transmission of information, in which the signals are coded by way of the magnitude of the amplitudes of the half-waves or periods of a sinus- wave alternating current |
-
1989
- 1989-06-05 GB GB8912862A patent/GB2219906A/en not_active Withdrawn
- 1989-06-13 KR KR1019890008091A patent/KR910002286A/en not_active Application Discontinuation
- 1989-06-13 DE DE3919302A patent/DE3919302A1/en not_active Withdrawn
- 1989-06-14 FR FR8907905A patent/FR2633131A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
KR910002286A (en) | 1991-01-31 |
DE3919302A1 (en) | 1989-12-21 |
FR2633131A1 (en) | 1989-12-22 |
GB2219906A (en) | 1989-12-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
HK182495A (en) | Data transmission system | |
GB2259834B (en) | Data transmission system | |
GB9118030D0 (en) | Data gathering system | |
GB8824205D0 (en) | Data communication system | |
GB2250871B (en) | Data transmission system | |
GB2228362B (en) | Data transmission system | |
EP0422575A3 (en) | Image data transmission system | |
GB2252479B (en) | Data transmission system | |
US4918329B1 (en) | Data transmission system | |
EP0315389A3 (en) | Data transmission system | |
DE3563291D1 (en) | Image data transmission system | |
GB2209256B (en) | Image transmission systems | |
GB8608450D0 (en) | Data transmission systems | |
GB2213024B (en) | Data transmission system | |
GB8912862D0 (en) | Image data transmitting systems | |
AU4576889A (en) | An image reading system | |
GB2188518B (en) | Data transmission systems | |
GB2224620B (en) | Digital data transmission systems | |
GB9017079D0 (en) | Data transmission system | |
GB8818702D0 (en) | Image transmission systems | |
GB8820008D0 (en) | Data transmission system | |
RU1821934C (en) | Data transmission system | |
GB9104207D0 (en) | Data transmission system | |
EP0525319A3 (en) | Data transmission system | |
RU1821940C (en) | Video data transmission system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |