Television – Two-way video and voice communication – User positioning
Patent
1995-05-25
1998-08-04
Powell, Mark R.
Television
Two-way video and voice communication
User positioning
348 7, 348385, 455 42, 455 51, H04N 7173
Patent
active
057901775
ABSTRACT:
The present invention describes a new digital video tape recorder apparatus and method in which video channels are simultaneously recorded in a recording mode, and in which any of the recorded video channels is reproduced when in a reproducing mode. The apparatus includes a first selector unit for generating signals for identifying one or more channels containing video signals to be recorded. A receiver sends the channel identifying signals to a transmitter, which, in turn, uses the channel identifying signals to selectively identify the channels to be transmitted to the receiver. The transmitter compresses and multiplexes the video signals of the channels selected by the receiver. The receiver receives the compressed and multiplexed signals, and records and stores the received signals. A demultiplexer selectively demultiplexes the channels transmitted to the receiver, and a memory records or stores the signals in the demultiplexed channels. A second selector unit selects one or more recorded channels for reproduction, such that a decompressor decompresses the signals of the channels selected by the second selector unit. The tape recorder apparatus further includes a decompressor associated with one or more of the recording media for pre-decompressing a predetermined amount of leading signals. In another embodiment, the selection signals from the first selector unit are fed back to the transmitter for determining the number of selected channels, so as to automatically adjust the channel bandwidth of the video channels.
REFERENCES:
patent: 3213201 (1965-10-01), Flood et al.
patent: 3693090 (1972-09-01), Gabriel
patent: 3733430 (1973-05-01), Thompson et al.
patent: 3740466 (1973-06-01), Mashall et al.
patent: 3883685 (1975-05-01), Yumde
patent: 3883686 (1975-05-01), Jacobus et al.
patent: 3898374 (1975-08-01), Gargini
patent: 3975583 (1976-08-01), Meadows
patent: 4035838 (1977-07-01), Bassani et al.
patent: 4075658 (1978-02-01), De Cosnac et al.
patent: 4079417 (1978-03-01), Scudder
patent: 4095259 (1978-06-01), Sawagata
patent: 4124871 (1978-11-01), Morrin
patent: 4127873 (1978-11-01), Katagi
patent: 4143401 (1979-03-01), Coviello
patent: 4148070 (1979-04-01), Taylor
patent: 4183058 (1980-01-01), Taylor
patent: 4189744 (1980-02-01), Stern
patent: 4193096 (1980-03-01), Stoffel
patent: 4215369 (1980-07-01), Ijima
patent: 4215370 (1980-07-01), Kirk
patent: 4242707 (1980-12-01), Budai
patent: 4282546 (1981-08-01), Reitmeier
patent: 4300161 (1981-11-01), Haskell
patent: 4302771 (1981-11-01), Gargini
patent: 4302776 (1981-11-01), Taylor
patent: 4345273 (1982-08-01), Barabas et al.
patent: 4365273 (1982-12-01), Yamada et al.
patent: 4369463 (1983-01-01), Anastassiou
patent: 4408836 (1983-10-01), Kikuno
patent: 4410980 (1983-10-01), Takasaki et al.
patent: 4417276 (1983-11-01), Bennett et al.
patent: 4442454 (1984-04-01), Powell
patent: 4450477 (1984-05-01), Lovett
patent: 4467355 (1984-08-01), Matsuda
patent: 4467356 (1984-08-01), McCoy
patent: 4506387 (1985-03-01), Walter
patent: 4517597 (1985-05-01), Glenn
patent: 4521806 (1985-06-01), Abraham
patent: 4533936 (1985-08-01), Tiemann et al.
patent: 4538176 (1985-08-01), Nakajima et al.
patent: 4573072 (1986-02-01), Freeman
patent: 4590516 (1986-05-01), Abraham
patent: 4593318 (1986-06-01), Eng et al.
patent: 4597058 (1986-06-01), Izumi et al.
patent: 4646138 (1987-02-01), Eichelberger et al.
patent: 4650929 (1987-03-01), Boerger et al.
patent: 4654799 (1987-03-01), Ogaki et al.
patent: 4689661 (1987-08-01), Barbieri et al.
patent: 4694490 (1987-09-01), Harvey et al.
patent: 4703349 (1987-10-01), Bernstein
patent: 4704725 (1987-11-01), Harvey et al.
patent: 4734764 (1988-03-01), Pockok et al.
patent: 4763317 (1988-08-01), Lehman et al.
patent: 4806922 (1989-02-01), McLauglin et al.
patent: 4814883 (1989-03-01), Perine et al.
patent: 4824215 (1989-04-01), Joseph et al.
patent: 4832457 (1989-05-01), Saitoh et al.
patent: 4874227 (1989-10-01), Matsukawa et al.
patent: 4890320 (1989-12-01), Monslow
patent: 4896209 (1990-01-01), Matsuzaki et al.
patent: 4903126 (1990-02-01), Kassatly
patent: 4905094 (1990-02-01), Pockok et al.
patent: 4924311 (1990-05-01), Ohki et al.
patent: 4949170 (1990-08-01), Yamagidairu et al.
patent: 4963995 (1990-10-01), Lang
patent: 4965825 (1990-10-01), Harvey et al.
patent: 4975771 (1990-12-01), Kassatly
patent: 4996707 (1991-02-01), O'Malley et al.
patent: 5017125 (1991-05-01), Pockok et al.
patent: 5027400 (1991-06-01), Baji et al.
patent: 5032927 (1991-07-01), Watanabe et al.
patent: 5057916 (1991-10-01), Krause et al.
patent: 5068724 (1991-11-01), Krause et al.
patent: 5091782 (1992-02-01), Krause et al.
patent: 5091931 (1992-02-01), Milewski
patent: 5099319 (1992-03-01), Esch et al.
patent: 5109414 (1992-04-01), Harvey et al.
patent: 5119188 (1992-06-01), McCalley et al.
patent: 5130792 (1992-07-01), Tindell et al.
patent: 5132789 (1992-07-01), Ammon et al.
patent: 5132992 (1992-07-01), Yurt et al.
patent: 5133079 (1992-07-01), Ballantyne et al.
patent: 5157492 (1992-10-01), Kassantly
patent: 5168353 (1992-12-01), Walker et al.
patent: 5182642 (1993-01-01), Gerdorff et al.
patent: 5187589 (1993-02-01), Kono et al.
patent: 5189673 (1993-02-01), Burton et al.
patent: 5191410 (1993-03-01), McCalley et al.
patent: 5195086 (1993-03-01), Baumgartner et al.
patent: 5216503 (1993-06-01), Paik et al.
patent: 5231494 (1993-07-01), Wachob et al.
patent: 5235419 (1993-08-01), Krause
patent: 5235680 (1993-08-01), Bijnagste
patent: 5239540 (1993-08-01), Rovira et al.
patent: 5241674 (1993-08-01), Reed et al.
patent: 5276866 (1994-01-01), Paolini
patent: 5337199 (1994-08-01), Arai et al.
patent: 5371602 (1994-12-01), Tsuboi
patent: 5440334 (1995-08-01), Walters et al.
patent: 5442389 (1995-08-01), Blahut et al.
patent: 5508733 (1996-04-01), Kassatly
Y.S. Kao et al., "Time-Multiplexed Analog Transmission of Three Broadcast Quality Television Channels Through one Satellite Transponder", Journal on Selected Areas in Communications, IEEE, Vol. SAC-5, No. 4 May 1987, pp. 676-684.
Kaneko et al. "Digital Transmission of Broadcast Television with Reduced Bit Rate", National Telecommunications, vol. 3, 1977, Section No. 41.
"DigicipherTM All Digital Channel Compatible, HDTV Broadcast System" by Woo Paik, General Instrument Corporation, IEEE Transactions on Broadcasting, vol. 36, Dec. 1990, pp. 245-254.
Koga et al. "Statistical Performance Analysis of an Interframe Encoder for Broadcast Television Signals", ITTT Transactions on Communications, vol. COM-29, No. 12, Dec. 1981, pp. 1868-1876.
Koga et al. "Statistical Analysis of Netec-22H System Performance", Copyrigth Notice: 1979 IEEE, pp. 23.7.1-23.7.5.
ISO/IEC 13818-1, MPEG-2 Recommendation H.222.0, Draft Date Jun. 10. 1994.
Grant Chris
Kassatly Samuel A.
Powell Mark R.
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