US Patent No: 5,467,197

Number of patents in Portfolio can not be more than 2000

Dual communication mode video tape recorder

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Abstract

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A dual communication mode system combines a point to point communications device with a television receiver and a video tape recorder. The result is a highly versatile and easily operated personal entertainment and communication center. The point to point communication device included in the personal communication and entertainment center can provide information to: (a) reset the center's time clock automatically if power to the center is interrupted or if the center clock must be synchronized to an accurate time; (b) program the personal entertainment and communication center from a remote location; (c) provide authorization signals to allow the personal entertainment and communication center to descramble coded signals received by the television receiver from a source such as a satellite or cable hookup; and (d) provide personal messages which can be recorded on the video tape recorder and displayed on the television screen.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PROTOCOL-IP.COM, L.L.C.CHIBA84

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hoff, Don G Tiburon, CA 14 819

Cited Art Landscape

Patent Info (Count) # Cites Year
 
STARSIGHT TELECAST, INC. (2)
4,706,121 TV schedule system and process 1100 1986
4,977,455 System and process for VCR scheduling 776 1988
 
A T & E Corporation (1)
5,016,273 Dual communication mode video tape recorder 132 1989
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
4,899,370 Remote control apparatus for electronic equipment 195 1988
 
NXP B.V. (1)
4,908,707 Video cassette recorder programming via teletext transmissions 339 1988
 
Teleview Rating Corporation, Inc. (1)
4,907,079 System for monitoring and control of home entertainment electronic devices 196 1987
 
Other [Check patent profile for assignment information] (4)
4,625,080 Remote video recorder programming apparatus operating over telephone lines 93 1983
4,605,973 System, apparatus and method for recording and editing broadcast transmissions 188 1985
4,787,063 Acquisition and transmission system for a recorder and a computer center 240 1985
4,841,562 Telephone VCR control 29 1987

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
THE DIRECTV GROUP, INC. (24)
7,209,524 Layered modulation for digital signals 36 2001
7,245,671 Preprocessing signal layers in a layered modulation digital signal system to use legacy receivers 18 2002
7,512,189 Lower complexity layered modulation signal processor 1 2003
7,173,977 Method and apparatus for tailoring carrier power requirements according to availability in layered modulation systems 1 2003
7,471,735 Maximizing power and spectral efficiencies for layered and conventional modulations 3 2003
7,230,480 Estimating the operating point on a non-linear traveling wave tube amplifier 3 2003
7,423,987 Feeder link configurations to support layered modulation for digital signals 3 2003
8,005,035 Online output multiplexer filter measurement 1 2003
7,529,312 Layered modulation for terrestrial ATSC applications 3 2003
7,463,676 On-line phase noise measurement for layered modulation 4 2003
7,639,759 Carrier to noise ratio estimations from a received signal 6 2004
7,502,429 Equalization for traveling wave tube amplifier nonlinearity measurements 2 2004
7,502,430 Coherent averaging for measuring traveling wave tube amplifier nonlinearity 2 2004
7,426,246 Dual layer signal processing in a layered modulation digital signal system 2 2006
7,426,243 Preprocessing signal layers in a layered modulation digital signal system to use legacy receivers 1 2007
7,483,495 Layered modulation for digital signals 1 2007
7,469,019 Optimization technique for layered modulation 1 2007
7,583,728 Equalizers for layered modulated and other signals 3 2007
7,577,213 Hierarchical 8PSK performance 2 2008
8,259,641 Feeder link configurations to support layered modulation for digital signals 1 2008
7,920,643 Maximizing power and spectral efficiencies for layered and conventional modulations 1 2008
7,706,466 Lower complexity layered modulation signal processor 1 2008
8,208,526 Equalizers for layered modulated and other signals 1 2009
8,130,818 Maximizing power and spectral efficiencies for layered and conventional modulations 1 2010
 
HUGHES ELECTRONICS CORPORATION (8)
7,173,981 Dual layer signal processing in a layered modulation digital signal system 31 2002
7,822,154 Signal, interference and noise power measurement 6 2002
7,418,060 Improving hierarchical 8PSK performance 1 2003
7,738,587 Method and apparatus for layered modulation 3 2003
7,483,505 Unblind equalizer architecture for digital communication systems 1 2003
7,184,473 Equalizers for layered modulated and other signals 13 2003
7,184,489 Optimization technique for layered modulation 2 2003
7,151,807 Fast acquisition of timing and carrier frequency from received signal 4 2003
 
SAMSUNG ELECTRONICS CO., LTD. (3)
6,249,639 Digital information recording-reproducing apparatus 6 1999
7,197,232 Digital information recording-reproducing apparatus 4 2004
8,472,785 Digital information recording-reproducing apparatus 0 2007
 
GATEWAY, INC. (1)
7,062,150 System and method for reminding users of upcoming scheduled recordings 1 1998
 
JERRY L. MCKINNEY TRUST (1)
6,807,364 Digital information recording-reproducing apparatus 2 2001
 
SONY ELECTRONICS INC. (1)
6,081,693 Television and radio information pager 20 1997