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公开(公告)号：EP1073225A4
公开(公告)日：2002-02-20
申请号：EP99973616
申请日：1999-09-30
Applicant: SONY CORP
Inventor： FUKUZAWA KEIJI , TOYOSHIMA MASAKATSU , OHISHI KATSUMI , INOSE KENJI
CPC classification number: H04N21/435 , H04N7/10 , H04N7/17354 , H04N21/235 , H04N21/23608 , H04N21/2362 , H04N21/4344 , H04N21/4345 , H04N21/4432
Abstract: An information distribution system comprises a central station (100) which includes an audience information processing section (114) and distributes digital multichannel service signals through a first transmission path (200); a plurality of network stations (300, 340) that receive digital multichannel service signals distributed by the central station using reception means (310, 320, 330), convert the received digital multichannel signals into digital multichannel service signals for a second transmission path (400) using modulation/conversion means, and send them to the network (400); and a plurality of receiving terminals (500) which receive digital multichannel service signals distributed by the network station. The receiving terminals (500) record the received audience information and send the information to the audience information processing section (114) in central station (100).
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公开(公告)号：ES2076937T3
公开(公告)日：1995-11-16
申请号：ES88300723
申请日：1988-01-28
Applicant: SONY CORP
Inventor： TAGAWA KOICHI , MATSUZAKI ATSUSHI , TOYOSHIMA MASAKATSU , KONDO YOSHIYUKI
IPC: B60R16/02 , B60R16/023 , B64D11/00 , G06F3/14 , G06F3/153 , G09B5/12 , H04B5/00 , H04B7/185 , H04N7/08 , H04N7/10 , H04N7/16 , H04N7/173 , H04N7/18
Abstract: A service and entertainment system for transmitting a plurality of video signals, audio signals and television game software signals from a central transmitting apparatus (100, 200) to each of a plurality of terminal units (30), which may be mounted at respective passenger seats in a passenger vehicle such as an aircraft or at respective seats in a stadium or a theatre. The video signals, audio signals and television game software signals are frequency-multiplexed and transmitted through a single signal transmitting means, such as a leaky cable (21), so that desired signals can be selected at each terminal unit (30).
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公开(公告)号：CA1316253C
公开(公告)日：1993-04-13
申请号：CA557440
申请日：1988-01-27
Applicant: SONY CORP
Inventor： TAGAWA KOICHI , MATSUZAKI ATSUSHI , TOYOSHIMA MASAKATSU , KONDO YOSHIYUKI
IPC: B60R16/02 , B60R16/023 , B64D11/00 , G06F3/14 , G06F3/153 , G09B5/12 , H04B5/00 , H04B7/185 , H04N7/08 , H04N7/10 , H04N7/16 , H04N7/173 , H04N7/18
Abstract: A service and entertainment system for transmitting a plurality of video signals, audio signals and television game software signals from a central transmitting apparatus to each of a plurality of terminal units, which may be mounted at respective passenger seats in a passenger vehicle such as aircraft or the like, or at respective seats in a stadium, a theater, or the like. The plurality of video signals, audio signals and television game software signals are frequency-multiplexed and transmitted through a single signal transmitting means, such as a leaky cable, so that desired signals can be selected at each terminal unit.
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公开(公告)号：CA1216632A
公开(公告)日：1987-01-13
申请号：CA442753
申请日：1983-12-07
Applicant: SONY CORP
Inventor： SAKAMOTO AKIRA , WAKU TOSHIHIKO , FUKAMI TAKESHI , TOYOSHIMA MASAKATSU , KOMATSUBARA MICHIMASA
IPC: H04K1/06
Abstract: A scrambling system for an audio frequency signal in which an audio signal is divided into blocks, each block being formed of a plurality of frames, the plurality of frames are rearranged on a timebase in a predetermined order at every block so as to be encoded and the encoded signal is re-arranged on the timebase in an original order so as to be decoded, in which there are provided a first signal processing circuit for inserting a redundant portion into a portion between adjoining frames and timebasecompressing the frames in response to the redundant portions upon encoding, a control signal generating circuit for inserting a control signal other than an audio information into the redundant portions, a control signal detecting circuit for detecting the control signal upon decoding and a second signal processing circuit for removing the redundant portions in synchronism with the detected control signal and timebase-expanding the frames in response to the redundant portions. Therefore, even when the audio signal is transmitted through a system in a transmission path having a timebase fluctuation such as a transmission path of a VTR (video tape recorder) and the like the frequency band region of which is restricted, the signal waveform is not distorted and a noise is not mixed therein so that the scrambling communication having high quality and high reliability can be presented.
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公开(公告)号：AU4177385A
公开(公告)日：1985-10-31
申请号：AU4177385
申请日：1985-04-29
Applicant: SONY CORP
Inventor： KUBOTA ICHIRO , TOYOSHIMA MASAKATSU
Abstract: A bidirectional digital signal communication system includes a plurality of terminal units in communication with a center unit. Each of the terminal units includes a signal generator for generating digital data spread with a PN (pseudo-noise) code, a modulator for modulating the digital data on a carrier, and a transmitter for transmitting the modulated digital signal to the center unit through a transmission line. The center unit includes a receiver for receiving the modulated digital signal, a PN code generator for locally generating a PN code which corresponds to the transmitted PN code, a multiplier supplied with outputs of the receiver and the PN code generator to produce a digital signal de-spread from the PN code, a demodulator connected to the multiplier to reproduce the digital data from the modulated digital signal, and a memory for storing the PN code when the signal level of the multiplier exceeds a predetermined value. The stored PN code is retrieved from the memory to enable rapid synchronization with the next transmission received from the terminal unit.
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Patent Agency Ranking
公开(公告)号：DE2440282A1
公开(公告)日：1975-03-06
申请号：DE2440282
申请日：1974-08-22
Applicant: SONY CORP
Inventor： HIDESHIMA YASUHIRO , TOYOSHIMA MASAKATSU
Abstract: An information transmitting system including a transmitter and at least one receiver. The transmitter includes a modulator which is modulated by a first control signal intermittently, and whose center frequency is changed continuously in response to a second control signal. The receiver is provided with a frequency discriminator which demodulates the first and second control signals and the first control signal is applied as a first remotely controllable signal in digital fashion and the second control signal is applied as a second remotely controllable signal in analog fashion in the receiver.
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公开(公告)号：DE69936717T2
公开(公告)日：2008-05-15
申请号：DE69936717
申请日：1999-09-30
Applicant: SONY CORP
Inventor： FUKUZAWA KEIJI , TOYOSHIMA MASAKATSU , OHISHI KATSUMI , INOSE KENJI
IPC: H04H1/00 , H04H20/06 , H04H20/74 , H04H20/79 , H04H60/16 , H04H60/21 , H04N7/10 , H04N7/173 , H04N7/24
Abstract: A QPSK demodulation circuit 421 QPSK-demodulates an inputted TS and outputs it to an error correction circuit 422. The error correction circuit 422 corrects the inputted signal and outputs it to a network information (NIT) conversion circuit 423. The NIT conversion circuit 423 replaces the NIT for CS waves with NIT for cable TV and outputs it to a QAM demodulation circuit 424. The QAM demodulation circuit 424 QAM-demodulates the inputted signal and outputs it to a frequency conversion circuit 425. The frequency conversion circuit 425 converts the frequency of the inputted signal into a predetermined value and outputs the signal to a signal mixer.
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公开(公告)号：DE3854480T2
公开(公告)日：1996-03-21
申请号：DE3854480
申请日：1988-01-28
Applicant: SONY CORP
Inventor： TAGAWA KOICHI , MATSUZAKI ATSUSHI , TOYOSHIMA MASAKATSU , KONDO YOSHIYUKI
IPC: B60R16/02 , B60R16/023 , B64D11/00 , G06F3/14 , G06F3/153 , G09B5/12 , H04B5/00 , H04B7/185 , H04N7/08 , H04N7/10 , H04N7/16 , H04N7/173 , H04N7/18
Abstract: A service and entertainment system for transmitting a plurality of video signals, audio signals and television game software signals from a central transmitting apparatus (100, 200) to each of a plurality of terminal units (30), which may be mounted at respective passenger seats in a passenger vehicle such as an aircraft or at respective seats in a stadium or a theatre. The video signals, audio signals and television game software signals are frequency-multiplexed and transmitted through a single signal transmitting means, such as a leaky cable (21), so that desired signals can be selected at each terminal unit (30).
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公开(公告)号：CA1276326C
公开(公告)日：1990-11-13
申请号：CA538317
申请日：1987-05-29
Applicant: NIPPON TELEGRAPH & TELEPHONE , SONY CORP
Inventor： SUTO KOHICHI , SUGIYAMA HISAYOSHI , SAKAMOTO AKIRA , FUKAMI TAKESHI , TERAUCHI TOSHIRO , TOYOSHIMA MASAKATSU
Abstract: A digital signal transmitting system includes a plurality of digital signal reproducers, each outputting a digital data signal to be time-division multiplexed; a digital signal multiplexer supplied with a frame synchronizing signal, a service bit signal and the output digital signals from the reproducers and for producing a block data signal including the frame synchronizing signal, the service bit signal and a plurality of slot data bits arranged with the digital data signals, each one bit within a multiple-frame, in which the service bit signal is indicative of the transmission mode and the slot data associated with each of the plurality of digital data signals being transmitted.
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公开(公告)号：AU583036B2
公开(公告)日：1989-04-20
申请号：AU4177385
申请日：1985-04-29
Applicant: SONY CORP
Inventor： KUBOTA ICHIRO , TOYOSHIMA MASAKATSU
Abstract: A bidirectional digital signal communication system includes a plurality of terminal units in communication with a center unit. Each of the terminal units includes a signal generator for generating digital data spread with a PN (pseudo-noise) code, a modulator for modulating the digital data on a carrier, and a transmitter for transmitting the modulated digital signal to the center unit through a transmission line. The center unit includes a receiver for receiving the modulated digital signal, a PN code generator for locally generating a PN code which corresponds to the transmitted PN code, a multiplier supplied with outputs of the receiver and the PN code generator to produce a digital signal de-spread from the PN code, a demodulator connected to the multiplier to reproduce the digital data from the modulated digital signal, and a memory for storing the PN code when the signal level of the multiplier exceeds a predetermined value. The stored PN code is retrieved from the memory to enable rapid synchronization with the next transmission received from the terminal unit.
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