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公开(公告)号：CA1276045C
公开(公告)日：1990-11-06
申请号：CA547151
申请日：1987-09-17
Applicant: SONY CORP
Inventor： HIGASHIYAMA MITSUO , IWAHASHI NAOTO , KUNIHIRO TAKUSHI , NAKAI JUN
Abstract: A method and system for radio communication between at least one parent communication unit and a plurality of slave communication units. A slave communication unit transmits an automatic answer signal in response to an incomming call receipt signal transmitted from the parent communication unit. When one of the slave communication units makes a called-person's answer to the incomming call receipt signal, it transmits a called-person's answer signal. If interference occurs between the automatic and called-person's answer signals, the parent communication unit provides a command, causing the slave communication units to stop the automatic and called-person's answer signals and permits the slave communication unit which transmits the called-person's answer signal to communicate with the parent communication unit.
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公开(公告)号：DE69227087D1
公开(公告)日：1998-10-29
申请号：DE69227087
申请日：1992-11-04
Applicant: SONY CORP
Inventor： HIGASHIYAMA MITSUO
Abstract: A cordless telephone apparatus comprising a master unit (2) connected to a telephone line (3) and slave units (11-15) each connected to the master unit (2) via a radio wave channel. The master unit (2) includes a recording/reproducing circuit (260) for recording an incoming message from a calling party on the telephone line (3) and reproducing the recorded message in response to a request. The recording/reproducing circuit (260) has a recording medium to record and reproduce the message, and a management area to manage the messages recorded on the recording medium. When the incoming message from the calling party is recorded on the recording medium in the recording/reproducing circuit (260), data for managing such message recording is registered in the management area in response to a key designation corresponding to the slave unit (11-15). And when a predetermined key operation is performed in the slave unit (11-15), the message relative to the key-operated slave unit (11-15) is reproduced from the recording medium in accordance with the data registered in the management area.
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公开(公告)号：AU585514B2
公开(公告)日：1989-06-22
申请号：AU4378985
申请日：1985-06-18
Applicant: SONY CORP
Inventor： HIGASHIYAMA MITSUO
Abstract: Signal transmission apparatus is provided for a communications system, such as a cordless telephone system, having a plurality of transmitters (A 1 , B 1 , C 1 ) for transmitting information signals over any one of several transmission channels, and a plurality of receivers (A 2 , B 2 , C 2 ) for receiving the information signals over any one of the transmission channels. To establish a selected transmission channel between a particular transmitter (A,, B,, C 1 ) and a particular receiver (A 2 , B 2 , C 2 ), the transmitter (A 1 , B 1 , C,) selects an unoccupied transmission channel and transmits thereon a code identifying the receiver (A 2 , B 2 , C 2 ) using a wide band signal for high speed bit transmission. When the receiver (A 2 , B 2 , C 2 ) detects the presence of the identifying code over a particular channel, it first determines that the transmitter (A 1 , B,, C 1 ) is the particular transmitter (A 1 , B,, C 1 ) and, if so, establishes the transmission channel therebetween. The transmitter (A 1 , B,, C 1 ) confirms that the transmission channel has been established, and then continues to transmit the identifying code repeatedly over the transmission channel using a narrow band signal with a low bit transmission rate. Both the wide band and narrow band signals containing the identifying code are included within the audio signal transmission band.
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公开(公告)号：GB2176974A
公开(公告)日：1987-01-07
申请号：GB8613761
申请日：1986-06-06
Applicant: SONY CORP
Inventor： HIGASHIYAMA MITSUO , KOMATSUBARA MICHIMASA , YAMAGATA MASATO
IPC: H04B1/40 , H04B7/26 , H04Q7/38 , H04M1/00 , H04M1/725 , H04M1/727 , H04W84/10 , H04B1/44 , H04Q7/02
Abstract: Apparatus for transmitting and receiving signals for use with a so-called cordless telephone, in which an audio signal and an identification code signal are transmitted and received by both the handset and base unit of the telephone and when the identification code signal is not correctly detected, as might be caused by cross-talk interference, the transmitter is disabled and a vacant communication channel is searched for and a communication channel is changed to thereby prevent a cross-talk interference. The unit that does not correctly receive the code signal immediately disables its transmitter and searches for a vacant channel and, because the code signal had been alternately transmitted and received between the two units, the other unit detects the stoppage of code signal transmission, disables its own transmitter, and then also moves to the next vacant channel to await further transmission of the code signal.
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公开(公告)号：DE3587027T2
公开(公告)日：1993-07-22
申请号：DE3587027
申请日：1985-06-21
Applicant: SONY CORP
Inventor： HIGASHIYAMA MITSUO
Abstract: Signal transmission apparatus is provided for a communications system, such as a cordless telephone system, having a plurality of transmitters (A 1 , B 1 , C 1 ) for transmitting information signals over any one of several transmission channels, and a plurality of receivers (A 2 , B 2 , C 2 ) for receiving the information signals over any one of the transmission channels. To establish a selected transmission channel between a particular transmitter (A,, B,, C 1 ) and a particular receiver (A 2 , B 2 , C 2 ), the transmitter (A 1 , B 1 , C,) selects an unoccupied transmission channel and transmits thereon a code identifying the receiver (A 2 , B 2 , C 2 ) using a wide band signal for high speed bit transmission. When the receiver (A 2 , B 2 , C 2 ) detects the presence of the identifying code over a particular channel, it first determines that the transmitter (A 1 , B,, C 1 ) is the particular transmitter (A 1 , B,, C 1 ) and, if so, establishes the transmission channel therebetween. The transmitter (A 1 , B,, C 1 ) confirms that the transmission channel has been established, and then continues to transmit the identifying code repeatedly over the transmission channel using a narrow band signal with a low bit transmission rate. Both the wide band and narrow band signals containing the identifying code are included within the audio signal transmission band.
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Patent Agency Ranking
公开(公告)号：DE3587027D1
公开(公告)日：1993-03-11
申请号：DE3587027
申请日：1985-06-21
Applicant: SONY CORP
Inventor： HIGASHIYAMA MITSUO
Abstract: Signal transmission apparatus is provided for a communications system, such as a cordless telephone system, having a plurality of transmitters (A 1 , B 1 , C 1 ) for transmitting information signals over any one of several transmission channels, and a plurality of receivers (A 2 , B 2 , C 2 ) for receiving the information signals over any one of the transmission channels. To establish a selected transmission channel between a particular transmitter (A,, B,, C 1 ) and a particular receiver (A 2 , B 2 , C 2 ), the transmitter (A 1 , B 1 , C,) selects an unoccupied transmission channel and transmits thereon a code identifying the receiver (A 2 , B 2 , C 2 ) using a wide band signal for high speed bit transmission. When the receiver (A 2 , B 2 , C 2 ) detects the presence of the identifying code over a particular channel, it first determines that the transmitter (A 1 , B,, C 1 ) is the particular transmitter (A 1 , B,, C 1 ) and, if so, establishes the transmission channel therebetween. The transmitter (A 1 , B,, C 1 ) confirms that the transmission channel has been established, and then continues to transmit the identifying code repeatedly over the transmission channel using a narrow band signal with a low bit transmission rate. Both the wide band and narrow band signals containing the identifying code are included within the audio signal transmission band.
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公开(公告)号：DE69227087T2
公开(公告)日：1999-02-11
申请号：DE69227087
申请日：1992-11-04
Applicant: SONY CORP
Inventor： HIGASHIYAMA MITSUO
Abstract: A cordless telephone apparatus comprising a master unit (2) connected to a telephone line (3) and slave units (11-15) each connected to the master unit (2) via a radio wave channel. The master unit (2) includes a recording/reproducing circuit (260) for recording an incoming message from a calling party on the telephone line (3) and reproducing the recorded message in response to a request. The recording/reproducing circuit (260) has a recording medium to record and reproduce the message, and a management area to manage the messages recorded on the recording medium. When the incoming message from the calling party is recorded on the recording medium in the recording/reproducing circuit (260), data for managing such message recording is registered in the management area in response to a key designation corresponding to the slave unit (11-15). And when a predetermined key operation is performed in the slave unit (11-15), the message relative to the key-operated slave unit (11-15) is reproduced from the recording medium in accordance with the data registered in the management area.
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公开(公告)号：GB2176974B
公开(公告)日：1990-01-17
申请号：GB8613761
申请日：1986-06-06
Applicant: SONY CORP
Inventor： HIGASHIYAMA MITSUO , KOMATSUBARA MICHIMASA , YAMAGATA MASATO
Abstract: Apparatus for transmitting and receiving signals for use with a so-called cordless telephone, in which an audio signal and an identification code signal are transmitted and received by both the handset and base unit of the telephone and when the identification code signal is not correctly detected, as might be caused by cross-talk interference, the transmitter is disabled and a vacant communication channel is searched for and a communication channel is changed to thereby prevent a cross-talk interference. The unit that does not correctly receive the code signal immediately disables its transmitter and searches for a vacant channel and, because the code signal had been alternately transmitted and received between the two units, the other unit detects the stoppage of code signal transmission, disables its own transmitter, and then also moves to the next vacant channel to await further transmission of the code signal.
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公开(公告)号：CA1247705A
公开(公告)日：1988-12-27
申请号：CA510785
申请日：1986-06-04
Applicant: SONY CORP
Inventor： HIGASHIYAMA MITSUO , KOMATSUBARA MICHIMASA , YAMAGATA MASATO
Abstract: Apparatus for transmitting and receiving signals for use with a so-called cordless telephone, in which an audio signal and an identification code signal are transmitted and received by both the handset and base unit of the telephone and when the identification code signal is not correctly detected, as might be caused by cross-talk interference, the transmitter is disabled and a vacant communication channel is searched for and a communication channel is changed to thereby prevent a cross-talk interference. The unit that does not correctly receive the code signal immediately disables its transmitter and searches for a vacant channel and, because the code signal had been alternately transmitted and received between the two units, the other unit detects the stoppage of code signal transmission, disables its own transmitter, and then also moves to the next vacant channel to await further transmission of the code signal.
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10.发明专利
公开(公告)号：CA1235753A
公开(公告)日：1988-04-26
申请号：CA484297
申请日：1985-06-18
Applicant: SONY CORP
Inventor： HIGASHIYAMA MITSUO
Abstract: Signal transmission apparatus is provided for a communications system having a plurality of transmitters for transmitting information signals over any one of several transmission channels, and further having a plurality of receivers for receiving the information signals over any one of the transmission channels. In order to establish a selected transmission channel between a particular transmitter and a particular receiver, the transmitter selects an unoccupied transmission channel and transmits thereon a code identifying the receiver using a wide band signal for high speed bit transmission. When the receiver detects the presence of the identifying code over a particular channel, it first determines that the transmitter is the particular transmitter and, if so, establishes the transmission channel therebetween. The transmitter confirms that the transmission channel has been established, and then continues to transmit the identifying code repeatedly over the transmission channel using a narrow band signal with a low bit transmission rate. Both the wide band and narrow band signals containing the identifying code are included within the audio signal transmission band, so that no extra bandwidth is required for transmission of the identifying code.
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