AU4947890A - Television transmission system compatible with conventional television standards - Google Patents

Television transmission system compatible with conventional television standards

Info

Publication number
AU4947890A
AU4947890A AU49478/90A AU4947890A AU4947890A AU 4947890 A AU4947890 A AU 4947890A AU 49478/90 A AU49478/90 A AU 49478/90A AU 4947890 A AU4947890 A AU 4947890A AU 4947890 A AU4947890 A AU 4947890A
Authority
AU
Australia
Prior art keywords
picture
receiver
solution
lines
expanded
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.)
Granted
Application number
AU49478/90A
Other versions
AU629295B2 (en
Inventor
Siegfried Dinsel
Werner Habermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsche Thomson oHG
Original Assignee
Telefunken Fernseh und Rundfunk GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE3841173A external-priority patent/DE3841173C1/en
Priority claimed from DE3843423A external-priority patent/DE3843423C1/en
Application filed by Telefunken Fernseh und Rundfunk GmbH filed Critical Telefunken Fernseh und Rundfunk GmbH
Publication of AU4947890A publication Critical patent/AU4947890A/en
Application granted granted Critical
Publication of AU629295B2 publication Critical patent/AU629295B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (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.
AU49478/90A 1988-12-07 1989-12-07 Television transmission system compatible with conventional television standards Ceased AU629295B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3841173A DE3841173C1 (en) 1988-12-07 1988-12-07 Compatible television transmission system
DE3841173 1988-12-07
DE3843423A DE3843423C1 (en) 1988-12-23 1988-12-23 Compatible television transmission system
DE3843423 1988-12-23

Publications (2)

Publication Number Publication Date
AU4947890A true AU4947890A (en) 1990-06-26
AU629295B2 AU629295B2 (en) 1992-10-01

Family

ID=25874891

Family Applications (1)

Application Number Title Priority Date Filing Date
AU49478/90A Ceased AU629295B2 (en) 1988-12-07 1989-12-07 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)

* Cited by examiner, † Cited by third party
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
JPH04330884A (en) * 1991-01-21 1992-11-18 Nippon Television Network Corp Multiple signal receiver
US5179443A (en) * 1991-01-21 1993-01-12 Nippon Television Network Corp. Multiplexed signal transmitting and receiving apparatus
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
WO1992020189A1 (en) * 1991-04-25 1992-11-12 Deutsche Thomson-Brandt Gmbh Process, coder and decoder for compatible transmission and/or recording of progressively scanned picture signals in interlace format

Family Cites Families (3)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
DE58908289D1 (en) 1994-10-06
KR910700588A (en) 1991-03-15
HU901218D0 (en) 1991-08-28
EP0451205A1 (en) 1991-10-16
JPH04502391A (en) 1992-04-23
EP0451205B1 (en) 1994-08-31
HUT57497A (en) 1991-11-28
AU629295B2 (en) 1992-10-01
KR0142586B1 (en) 1998-07-15
BR8907808A (en) 1991-08-27
ATE110911T1 (en) 1994-09-15
HK40296A (en) 1996-03-15
ES2062506T3 (en) 1994-12-16
WO1990006655A1 (en) 1990-06-14

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