Patents by Inventor Yoshio Yasumoto
Yoshio Yasumoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5442403Abstract: A wide-screen TV signal transmission apparatus includes transmitting a wide-screen TV signal generator for generating a wide-screen TV signal source; a scanning line converter for down-converting a wide-screen TV signal with an integer conversion ratio to obtain a conventional TV-compatible signal with upper and lower black bars; a vertical augmentation signal generator for generating a vertical augmentation signal to enhance the vertical resolution at the receiving side of the transmission apparatus; and adder for adding; a conventional TV-compatible signal and a vertical augmentation signal to obtain a conventional TV-compatible composed signal; and a transmitter for transmitting a conventional TV-compatible composed signal.Type: GrantFiled: September 15, 1992Date of Patent: August 15, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshio Yasumoto, Sadashi Kageyama, Shuji Inoue, Hideyo Uwabata
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Patent number: 5276507Abstract: A multiplex TV signal processing apparatus in a television signal transmitting and receiving system includes an apparatus at the transmitting side which has a first amplitude-modulator for modulating a first carrier by a main signal to obtain a vestigial side-band amplitude-modulated main signal; a second amplitude-modulator for modulating a second carrier but whose frequency is the same as which phase is 90 degree different from the first carrier by a sub signal to obtain a carrier suppressed amplitude-modulated signal; a first inserter for inserting a first ghost canceling reference signal into a horizontal line of the main signal during a vertical blanking period; a second inserter for inserting a second ghost canceling reference signal into the same horizontal line of the sub signal as the first ghost canceling reference signal; and includes an apparatus at the receiving side which has: a first demodulator for demodulating the main signal; a second demodulator for demodulating the sub signal; a ghost cancType: GrantFiled: March 19, 1991Date of Patent: January 4, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hideyo Uwabata, Yoshio Yasumoto, Sadashi Kageyama, Shuji Inoue
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Patent number: 5270817Abstract: In the television broadcasting system called letter box method, it is proposed to transmit an image having a larger aspect ratio than that of the existing broadcasting system by using some of the scanning lines of the existing broadcasting system, and transmit some additional information signal in the remaining portion. An offset value applied to the additional information signal at the transmission side must be removed completely at the reception side. Accordingly, at the reception side, in the scanning line in which an offset reference signal indicative of the offset value is transmitted, the offset reference value and a DC level reference value of the scanning line are detected, and these values are retained until a next offset reference signal is detected.Type: GrantFiled: April 15, 1993Date of Patent: December 14, 1993Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kenichiro Hayashi, Shuji Inoue, Sadashi Kageyama, Hideyo Uwabata, Todd S. Bowser, Yoshio Yasumoto
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Patent number: 5142353Abstract: A television signal processor which is compatible with the existing television systems and is capable of producing television signals having a larger aspect ratio than the standard aspect ratio has an arrangement such that, at the transmission side, a main signal and a multiplex signal are produced from an electrical signal obtained by receiving an original image through processes such as time-axis compression, time-axis expansion, and chrominance signal processing, and are subjected to non-time-axis multiplexing. The processor has a further arrangement such that, at the reception side, there are provided a circuit for separating the non-time-axis multiplexed signal, a circuit for separating a luminance signal and a chrominance signal, a circuit for demodulating the chrominance signal, a circuit for effecting time-axis compression, a circuit for time-axis expanding the time-axis multiplexed signal, and a circuit for time-axis compressing the non-time-axis multiplexed signal.Type: GrantFiled: April 12, 1991Date of Patent: August 25, 1992Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Sadashi Kageyama, Yoshio Abe, Yoshio Yasumoto, Shuji Inoue, Hideyo Uwabata
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Patent number: 5103295Abstract: A main signal motion detection signal and a multiplex motion detection signal are processed to obtain a compensated motion detection signal. This signal is a motion detection signal for a portion other than a portion having an aspect ratio of 4:3. Thus, a television signal processor is provided which eliminates quality differences between images in the portion having an aspect ratio of 4:3 and images in the other portion having a different aspect ratio.Type: GrantFiled: April 25, 1990Date of Patent: April 7, 1992Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hideyo Uwabata, Yoshio Yasumoto, Sadashi Kageyama, Shuji Inoue, Yoshio Abe
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Patent number: 5036386Abstract: A signal processing apparatus in a television signal transmitting system includes: a first group of delay lines for obtaining a first series of parallel signals; a first group of coefficient multipliers for weighting the first series of signals; a first adder for adding outputs of the first group of coefficient multipliers; a second group of delay lines for obtaining a second series of parallel signals; a second group of coefficient multipliers for weighting the second series of signals; a second adder for adding outputs of the second group of coefficient multipliers and one of the first series of signals; and a transmitter for transmitting output signals from the first and second adders.Type: GrantFiled: July 19, 1989Date of Patent: July 30, 1991Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshio Yasumoto, Sadashi Kageyama, Syuji Inoue, Yoshio Abe, Hideyo Uwabata
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Patent number: 4985769Abstract: Disclosed are multiplex television signal processing apparatuses in a television signal transmitting and receiving system. An apparatus at the transmitting side comprises: a signal separator to separate a multiplex signal into a first and a second part; a time-multiplexer to time-multiplex a main television signal and the first part of the multiplex signal to obtain a time-multiplexed main signal; a first amplitude-modulator for modulating a first carrier by the multiplexed main signal to obtain a vestigial side band signal, amplitude-modulated main signal; a second amplitude-modulator for modulating a second carrier which is same in frequency as but different in phase by 90 degrees from the first carrier by a second multiplex signal; an inverse Nyquist filter for filtering this signal to obtain a vestigial side band, amplitude-modulated multiplex signal; and an adder for adding the vestigial side band, amplitude-modulated main and multiplex signals to obtain a multiplexed signal.Type: GrantFiled: March 23, 1988Date of Patent: January 15, 1991Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshio Yasumoto, Sadashi Kageyama, Shuji Inoue, Yoshio Abe, Hideyo Uwabata
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Patent number: 4944032Abstract: A multiplex signal processing apparatus in a singal transmitting and receiving system includes at the transmitting side: a first amplitude-modulator for modulating a first carrier by a main signal to obtain a vestigial sideband, amplitude-modulated main signal; a second amplitude-modulator for modulating a second carrier which has the same frequency but differs in phase by 90.degree. from the first carrier by a multiplex signal to obtain a double sideband, amplitude-modulated multiplex signal; an inverse Nyquist filter for filtering this signal to obtain a vestigial sideband, amplitude-modulated multiplex signal; and an adder for adding the vestigial sideband, amplitude-modulated main and multiplex signals to obtain a multiplexed signal.Type: GrantFiled: May 1, 1989Date of Patent: July 24, 1990Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Sadashi Kageyama, Yoshio Abe, Yoshio Yasumoto, Shuji Inoue, Hitoshi Takai, Mitsujiro Matsumoto, Kouji Aono, Kiyoshi Uchimura, Iwasaki Eiji
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Patent number: 4907218Abstract: In a multiplex signal processing apparatus, in the band of a demodulated signal in which a carrier is amplitude-modulated in a vestigial side band by a main signal, another carrier is superposed which is identical in frequency to the first carrier but different in phase by 90.degree. is amplitude-modulated its double side bands by a multiplex signal which is different from the main signal and which is formed into a vestigial side band signal by a nyquist filter. At least either the frequency or polarity of the multiplex signal is inverted on the transmission side by a multiplier, an oscillator and a filter. At least either the frequency or polarity of the multiplex signal is inverted on the reception side by a multiplier, an oscillator and a filter. The reception side has a crosstalk reduction filter for removing crosstalk from the main signal to the multiplex signal.Type: GrantFiled: September 19, 1988Date of Patent: March 6, 1990Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shuji Inoue, Yoshio Yasumoto, Sadashi Kageyama, Hideyo Uwabata, Yoshio Abe
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Patent number: 4882614Abstract: A multiplex signal processing apparatus in a signal transmitting and receiving system includes at the transmitting side: a first amplitude-modulator for modulating a first carrier by a main signal to obtain a vestigial sideband, amplitude-modulated main signal; a second amplitude-modulator for modulating a second carrier which has the same frequency but differs in phase by 90.degree. from the first carrier by a multiplex signal to obtain a double sideband, amplitude-modulated multiplex signal; an inverse Nyquist filter for filtering this signal to obtain a vestigial sideband, amplitude-modulated multiplex signal; and an adder for adding the vestigial sideband, amplitude-modulated main and multiplex signals to obtain a multiplexed signal.Type: GrantFiled: July 7, 1987Date of Patent: November 21, 1989Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Sadashi Kageyama, Yoshio Abe, Yoshio Yasumoto, Shuji Inoue, Hitoshi Takai, Mitsujiro Matsumoto, Kouji Aono, Kiyoshi Uchimura, Eiji Iwasaki
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Patent number: 4523225Abstract: A flat CRT type image display apparatus comprises a number of horizontally disposed parallel line cathodes and vertical and horizontal deflection means, and electron beams control means, and the deflection means includes digital memory means storing data for deflection signals, address counter means for producing address signal to read out the digital memory means, D/A converters for converting read out data to produce deflection signals and also a microcomputer for setting and adjusting data in the digital memory means.Type: GrantFiled: May 13, 1983Date of Patent: June 11, 1985Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Mitsuya Masuda, Sadahiro Iyehara, Shizuo Inohara, Minoru Ueda, Keisuke Yamamoto, Yoshio Yasumoto
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Patent number: 4337479Abstract: A color resolution compensator for a color television receiver improves the resolution of a reproduced color picture by mixing a high frequency component of a luminance signal to a color difference signal to generate a signal to be fed to the color demodulators of the television receiver. Various portions of the luminance signal and the color difference signal may be optimally selected in dependence upon various predetermined design parameters.Type: GrantFiled: September 5, 1980Date of Patent: June 29, 1982Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tetsuo Tomimoto, Yoshio Yasumoto, Eiichi Taira
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Patent number: 4316215Abstract: A system for improving color picture qualities in which in response to the output signal representative of whether the transient portion of the luminance signal Y and the color difference signal (C-Y), where C is R, G or B, is in the same direction or in the opposite directions, the high-frequency component in the luminance signal is so controlled as to provide the correction signal which serves to improve the contour lines of the images in the reproduced color picture.Type: GrantFiled: September 18, 1980Date of Patent: February 16, 1982Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yoshio Yasumoto, Tetsuo Tomimoto, Eiichi Taira