HK40296A - Television transmission system compatible with conventional television standards - Google Patents
Television transmission system compatible with conventional television standardsInfo
- Publication number
- HK40296A HK40296A HK40296A HK40296A HK40296A HK 40296 A HK40296 A HK 40296A HK 40296 A HK40296 A HK 40296A HK 40296 A HK40296 A HK 40296A HK 40296 A HK40296 A HK 40296A
- Authority
- HK
- Hong Kong
- Prior art keywords
- picture
- receiver
- solution
- lines
- expanded
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
- H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
- H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
- H04N11/14—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system
- H04N11/16—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system the chrominance signal alternating in phase, e.g. PAL-system
- H04N11/167—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system the chrominance signal alternating in phase, e.g. PAL-system a resolution-increasing signal being multiplexed to the PAL-system signal, e.g. PAL-PLUS-system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
- H04N11/24—High-definition television systems
- H04N11/26—High-definition television systems involving two-channel transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/007—Systems with supplementary picture signal insertion during a portion of the active part of a television signal, e.g. during top and bottom lines in a HDTV letter-box system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/015—High-definition television systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/06—Systems for the simultaneous transmission of one television signal, i.e. both picture and sound, by more than one carrier
- H04N7/066—Systems for the simultaneous transmission of one television signal, i.e. both picture and sound, by more than one carrier the carriers being allocated to more than one television channel
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Systems (AREA)
- Color Television Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Dc Digital Transmission (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Details Of Television Systems (AREA)
Abstract
In the system disclosed, scanning is carried out on the image source side with a frame corresponding to an enlarged 16:9 picture ratio. On the emitter side, every fourth line of the picture signal is first isolated and the remaining lines are compressed. A 4:3 standard receiver reproduces a corresponding image in the "letter box" format. The 16:9 receiver should reconstruct the original picture signal. First solution: the isolated lines are expanded for the duration of a complete picture, modulated to a second picture carrier at the upper end of the transmission channel outside the standard intermediate frequency resonance curve, and then demodulated, expanded and reintroduced into the 16:9 receiver. Second solution: analog-coded line difference signals in the level between the black and synchronization pulses are transmitted in the freed spaces at the upper and lower edges of the picture, decoded in the 16:9 receiver and reused. Third solution: additional digital data, e.g. motion vectors, are transmitted in the spaces freed at the upper and lower edges of the picture, and used by the 16:9 receiver to interpolate the missing lines. Application to television receiving sets with 4:3 and 16:9 picture ratio.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3841173A DE3841173C1 (en) | 1988-12-07 | 1988-12-07 | Compatible television transmission system |
DE3843423A DE3843423C1 (en) | 1988-12-23 | 1988-12-23 | Compatible television transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
HK40296A true HK40296A (en) | 1996-03-15 |
Family
ID=25874891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK40296A HK40296A (en) | 1988-12-07 | 1996-03-07 | Television transmission system compatible with conventional television standards |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0451205B1 (en) |
JP (1) | JPH04502391A (en) |
KR (1) | KR0142586B1 (en) |
AT (1) | ATE110911T1 (en) |
AU (1) | AU629295B2 (en) |
BR (1) | BR8907808A (en) |
DE (1) | DE58908289D1 (en) |
ES (1) | ES2062506T3 (en) |
HK (1) | HK40296A (en) |
HU (1) | HUT57497A (en) |
WO (1) | WO1990006655A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4029189A1 (en) * | 1990-09-14 | 1992-03-19 | Rundfunkschutzrechte Ev | METHOD FOR SPLITING A TAPE SIGNALED IN A SIGNAL AND BASED IN A RECEIVER |
US5179443A (en) * | 1991-01-21 | 1993-01-12 | Nippon Television Network Corp. | Multiplexed signal transmitting and receiving apparatus |
JPH04330884A (en) * | 1991-01-21 | 1992-11-18 | Nippon Television Network Corp | Multiple signal receiver |
US5278649A (en) * | 1991-01-22 | 1994-01-11 | Matsushita Electric Corporation Of America | Method and apparatus for transmission of signals for an extended definition television system |
JPH04326275A (en) * | 1991-04-25 | 1992-11-16 | Matsushita Electric Ind Co Ltd | Method and device for processing television signal |
DE59209063D1 (en) * | 1991-04-25 | 1998-01-22 | Thomson Brandt Gmbh | METHOD FOR COMPATIBLE TRANSMISSION, DECODING OR RECORDING OF PROGRESSIVELY SCANNED IMAGE SIGNALS IN INTERMEDIATE LINE FORMAT |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4589018A (en) * | 1983-06-03 | 1986-05-13 | At&T Bell Laboratories | Technique for the time frequency multiplexing on three television signals |
DE3840054C1 (en) * | 1988-11-28 | 1989-09-07 | Institut Fuer Rundfunktechnik Gmbh, 8000 Muenchen, De | |
JPH0372796A (en) * | 1989-04-28 | 1991-03-27 | Matsushita Electric Ind Co Ltd | Television signal processing unit |
-
1989
- 1989-12-07 DE DE58908289T patent/DE58908289D1/en not_active Expired - Fee Related
- 1989-12-07 JP JP2502313A patent/JPH04502391A/en active Pending
- 1989-12-07 HU HU901218A patent/HUT57497A/en unknown
- 1989-12-07 ES ES90901771T patent/ES2062506T3/en not_active Expired - Lifetime
- 1989-12-07 WO PCT/EP1989/001503 patent/WO1990006655A1/en active IP Right Grant
- 1989-12-07 BR BR898907808A patent/BR8907808A/en unknown
- 1989-12-07 KR KR1019900701715A patent/KR0142586B1/en not_active IP Right Cessation
- 1989-12-07 AU AU49478/90A patent/AU629295B2/en not_active Ceased
- 1989-12-07 EP EP90901771A patent/EP0451205B1/en not_active Expired - Lifetime
- 1989-12-07 AT AT90901771T patent/ATE110911T1/en not_active IP Right Cessation
-
1996
- 1996-03-07 HK HK40296A patent/HK40296A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0451205B1 (en) | 1994-08-31 |
BR8907808A (en) | 1991-08-27 |
KR0142586B1 (en) | 1998-07-15 |
DE58908289D1 (en) | 1994-10-06 |
ATE110911T1 (en) | 1994-09-15 |
JPH04502391A (en) | 1992-04-23 |
EP0451205A1 (en) | 1991-10-16 |
AU629295B2 (en) | 1992-10-01 |
WO1990006655A1 (en) | 1990-06-14 |
AU4947890A (en) | 1990-06-26 |
HUT57497A (en) | 1991-11-28 |
ES2062506T3 (en) | 1994-12-16 |
HU901218D0 (en) | 1991-08-28 |
KR910700588A (en) | 1991-03-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |