51
Masanori Suzuki, Kiyoshi Tateishi: Method and apparatus for correcting the loop gain of a servo loop in accordance with measurements during open-loop operation. Pioneer Electronic Corporation, Sughrue Mion Zinn Macpeak & Seas, October 31, 1989: US04878211 (95 worldwide citation)

A servo loop particulary useful for a focusing or tracking servo in an optical disk. The peak-to-peak value of an error signal in the servo loop is detected while the optical pickup is being driven perpendicularly to the disk in focusing or transversely to the disk in tracking. The detected peak-to- ...


52
Akihiro Tozaki, Takao Sawabe, Ryuichiro Yoshimura, Yoshiaki Moriyama, Kaoru Yamamoto, Junichi Yoshio: Information recording medium, apparatus for recording the same and apparatus for reproducing the same. Pioneer Electronic Coporation, Morgan Lewis & Bockius, March 17, 1998: US05729516 (95 worldwide citation)

In a recording medium such as a DVD, various information such as video and audio information is recorded in a form of a plurality of recorded information pieces. Further, control information pieces prescribe the manner of reproducing the recorded information pieces. Copy information indicating wheth ...


53
Ryuuich Naito: Control method of disk drive for recordable optical disk. Pioneer Electronic Corporation, Sughrue Mion Zinn Macpeak & Seas, November 26, 1991: US05068842 (94 worldwide citation)

A control method of a disk drive for a recordable optical disk whose information storage area is divided into plural bands and comprises first sectors for recording user data and third sectors for recording defect management this information represents addresses of the defect first sectors and corre ...


54
Shuichi Mori, Yasumasa Fukatsu, Takashi Sakakibara: Automatic sound volume control device. Pioneer Electronic, Sughrue Mion Zinn Macpeak & Seas, November 12, 1985: US04553257 (93 worldwide citation)

An automatic sound volume control device for use in a device such as a radio or tape player used in a high ambient noise environment. The noise and sound signal levels above predetermined reference levels are detected and a control signal is produced having a level determined in accordance with the ...


55
Tetsuro Nagakubo: Apparatus allowing continuous adjustment of luminance of a plasma display panel. Pioneer Electronic Corporation, Sughrue Mion Zinn Macpeak & Seas PLLC, May 26, 1998: US05757343 (92 worldwide citation)

A luminance adjusting apparatus for a plasma display panel allows an adjustment of the luminance of a whole panel in a continuous manner. An adjustment to the number of times of light emission and a gain adjustment to pixel data are performed in association with each other in response to a luminance ...


56
Toshio Tabata, Hiroki Uemura: Tuning system for CATV terminal. Pioneer Electronic Corporation, Fraser and Bogucki, February 23, 1982: US04317215 (92 worldwide citation)

In a CATV system, channel identifying data is incorporated in each transmitted channel, and subscriber terminals return such data to the CATV center to indicate the channel actually being received. Further, the channel identifying data is compared to the channel selected, and when a proper compariso ...


57
Keiichi Yamauchi, Toshihiko Shimizu, Satomi Sudo: Apparatus for reproducing from a storage medium information corresponding to each stored musical arrangement and for mixing voice data with music data. Pioneer Electronic Corporation, Sughrue Mion Zinn Macpeak & Seas, September 14, 1993: US05245600 (91 worldwide citation)

An information storage medium such as a CD-ROM has a storage area which stores digital audio information including music digital audio information and a plurality of music piece information having mark information for retrieving the accompaniment information, and a digital contents information table ...


58
Tomomitsu Kouno, Hideki Hatano, Takashi Yamaji, Sakashi Ootaki, Masami Nishida: Photo-conductive liquid crystal light valve. Pioneer Electronic, Sughrue Mion Zinn Macpeak & Seas, April 23, 1991: US05009490 (91 worldwide citation)

A photo-conductive liquid crystal display in which the liquid crystal light valve and the electroluminescence element are disposed integrally with each other. The photo-conductive liquid crystal light valve is arranged such that a pair of transparent electrodes are disposed on the outside of a lamin ...


59
Yoshio Sasaki, Mamoru Saitoh: Driver for capacitive light-emitting device with degradation compensated brightness control. Pioneer Electronic Corporation, Tohoku Pioneer Electric Corporation, Morgan Lewis & Bockius, November 9, 1999: US05982104 (90 worldwide citation)

A driving apparatus according to the invention turns on a capacitive light emitting device having a first electrode and a second electrode in accordance with a light-on instruction. The apparatus has: a voltage accumulating unit, for example, a capacitor for holding a voltage energy corresponding to ...


60
Isao Endo: Satellite radio wave capturing method for a global positioning system (GPS) receiver. Pioneer Electronic Corporation, Foley & Lardner, June 21, 1994: US05323164 (89 worldwide citation)

A satellite radio wave capturing method of a GPS receiver, in which an offset value of an oscillator of the GPS receiver is calculated by subtracting a Doppler frequency deviation of the first captured satellite radio wave from an actual received frequency of the first captured satellite radio wave, ...