1
Minami Michitoshi, Kojima Yutaka, Hayeiwa Kazuhisa, Naka Hisashi: Amplitude modulation circuit and method. Japan Radio, Japan Broadcasting, August 7, 1996: EP0725478-A1 (77 worldwide citation)

A predetermined number of (e.g., 6) drivers (28-1, 28-2, ... 28-6) and differentially switched power amplifiers (34-1, 34-2, ... 34-6) are provided in pairs. A program sound signal which has been quantized into a predetermined number of bits (e.g., 12 bits) is divided through a ROM into a plurality ...


2
Nakamura Akira, Ikezawa Ryou, Seiyama Nobumasa, Takagi Tohru, Miyasaka Eiichi: Method and apparatus for hearing assistance with speech speed control function.. Japan Broadcasting, March 31, 1993: EP0534410-A2 (72 worldwide citation)

A method and an apparatus for hearing assistance, capable of compensating the lowering of the speech recognition ability related to the deterioration of the auditory sense center. The input speech is divided into voiced speech sections, unvoiced speech sections, and silent sections, of which the voi ...


3
Isono Haruo, Yasuda Minoru: Three-dimensional image display using electrically generated parallax barrier stripes.. Japan Broadcasting, May 5, 1993: EP0540137-A1 (71 worldwide citation)

A display apparatus for displaying a three-dimensional image includes an image display section (100) for displaying an image in response to an input image signal and for displaying a three-dimensional image in response to an input three-dimensional image signal when a three-dimensional image display ...


4
Sato Toru C O Nec Corporation, Saito Masafumi C O Nhk Hosogij: Afc for ofdm using windowing. Nippon Electric Co, Japan Broadcasting, December 27, 1995: EP0689313-A2 (66 worldwide citation)

In a receiver for an OFDM modulated transmission signal including at least one synchronizing symbol in each frame, the synchronizing symbol is located by stepwise shifting a window along a reception sample sequence to make a cross-correlation calculator (55) calculate cross-correlation values betwee ...


5
Takizawa Kuniharu C O Nhk Tech: Optically writing projection-type display.. Japan Broadcasting, July 17, 1991: EP0436738-A1 (37 worldwide citation)

The optically writing space-light modulation element (1) is in close contact with the fibre plate (2) on a cathode-ray tube (3), and consists of a laminate and two transparent electrodes (15) sandwiching the laminate. The laminate comprises a nematic, cholesteric, or smectic liq crystal (22), a liq. ...


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Mitsuo Mino: Automatic gain control apparatus. Japan Broadcasting, Parkhurst & Oliff, September 4, 1984: US04470067 (26 worldwide citation)

An automatic gain control apparatus wherein red, blue and green channels of an input image signal are supplied directly, and indirectly through variable gain amplifiers, to black-level non-additive mixing circuits, respectively, and the channel signals of the input image signal are further supplied ...


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Shibuya Kazuhiko, Kumada Junji, Iwadate Yuichi, Hamazumi Hiroyuki, Nomoto Toshihiro, Takano Kouichi, Saito Tomohiro, Tanaka Shoji, Minematsu Fumiaki, Hashimoto Akinori, Itoh Shigeyuki, Matsumura Hajime, Katoh Hisakazu, Takechi Masaru: Afc circuit, carrier reproducing circuit, and receiver. Japan Broadcasting, September 8, 1999: EP0940957-A1 (24 worldwide citation)

Stabilized carrier recovery is acheived even at the time of a low C/N ratio by measuring the phase of a signal and controlling VCO or NCO (Numerical Controlled Oscillator) using only a period having few constellation points. At this time, false lock phenomenon is avoided as follows. That is, relativ ...


10
Shinji Okamoto, Eiichiro Nakazawa: Thin-film cold cathode structure and device using this cathode. Japan Broadcasting, October 16, 1992: FR2675306-A1 (22 worldwide citation)

The cold cathode device according to the present invention comprises a first electrode (2) formed on a substrate (1), an insulating film (3) formed on the first electrode, a thin film (4) formed on the insulating film for generating excited electrons and a second electrode (5) formed on the thin fil ...