Universal Pioneer Corporation
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Jan 14, 1986 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 444 Total Citation Count
- Jun 07, 1979 Earliest Filing
- 34 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
Top Patents (by citation)
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Recent Publications
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Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
4564867 Video disc recording and reproducing device for video discs having recognition signal indicative of content of associated program signalExpiredJul 23, 81Jan 14, 86[H04N]
4512002 Tracking servo system of recording disc information recording and reproducing apparatusExpiredApr 04, 83Apr 16, 85[G11B]
4512005 Information reproducing apparatus in a recording disc playerExpiredJan 18, 82Apr 16, 85[A04N]
4498158 Address data searching method for data recording medium reproducing deviceExpiredJul 02, 80Feb 05, 85[G11B]
4494154 Pickup control device and method for fast or slow reproduction in a disk reading systemExpiredJul 23, 81Jan 15, 85[H04N, G11B]
4477838 Tangential error signal generator in PAL type video disc playerExpiredDec 17, 81Oct 16, 84[H04N]
4475182 Focus servo control system for automatically adjusting a relative distance between an objective lens unit and a recording surface of an optical recording mediumExpiredDec 22, 81Oct 02, 84[G11B]
4459621 High frequency crosstalk eliminating circuit in video disc reproducing deviceExpiredDec 29, 81Jul 10, 84[H04N]
4442516 Drive mechanism for disc player with bearing supported sliderExpiredJun 01, 81Apr 10, 84[G11B]
4429378 Optical pickup device for use in a video and/or audio disc playerExpiredMar 31, 81Jan 31, 84[G11B]
4425583 Video disc player having time base variations eliminated in both audio and video signalsExpiredMay 05, 81Jan 10, 84[H04N]
4422103 Device for reducing the effect of time base variations in video disc playerExpiredMay 21, 81Dec 20, 83[H04N]
4415935 Tangential servo control signal generating device for recorded data reproducing deviceExpiredJul 10, 80Nov 15, 83[H04N]
4403259 Apparatus for reading information from an information recording discExpiredSep 28, 81Sep 06, 83[H04N, G11B]
4390977 Apparatus for maintaining rotational speed in disk reproducing deviceExpiredNov 13, 81Jun 28, 83[G11B]
Top Inventors for This Owner
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