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公开(公告)号：US3919482A
公开(公告)日：1975-11-11
申请号：US20507271
申请日：1971-12-06
Applicant: SONY CORP
Inventor： HAMADA OSAMU
CPC classification number: H04H40/72 , H03G3/345 , H04B1/1661
Abstract: In an FM receiver having a stereo demodulator circuit supplied with a composite stereophonic signal from which right and left channel audio signals, are reproduced, a noise suppression circuit which includes a pair of gate circuits connected to a pair of output stages of the demodulator circuit, a noise signal detecting circuit connected to an output stage of an FM discriminator and a control signal producing circuit supplied with a noise signal derived from the detecting circuit to produce a control signal. The gate circuits are controlled by the control signal to cut off audio signals from the demodulator circuit in the presence of a noise signal, thereby momentarily to cause the FM receiver not to reproduce the stereophonic signal.
Abstract translation: 在具有立体声解调器电路的FM接收机中，该立体声解调器电路被提供有复合立体声信号，再现左和右声道音频信号，噪声抑制电路包括连接到解调器电路的一对输出级的一对门电路， 连接到FM鉴频器的输出级的噪声信号检测电路和提供有从检测电路得到的噪声信号的控制信号产生电路，以产生控制信号。 门控电路由控制信号控制，以在存在噪声信号的情况下切断来自解调器电路的音频信号，从而暂时使FM接收机不再现立体声信号。
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公开(公告)号：US3908174A
公开(公告)日：1975-09-23
申请号：US43651474
申请日：1974-01-25
Applicant: SONY CORP
Inventor： HAMADA OSAMU
CPC classification number: H03D13/006 , H03L7/113
Abstract: A frequency and phase comparator which includes a frequency discriminator and a phase comparator, which is suitable for use in a phase locked loop. The phase comparator produces an output signal proportional to the phase difference between the output signal of a reference oscillator and the output signal of a voltage controlled oscillator when the difference in frequency is within a predetermined range. The frequency discriminator produces a control signal proportional to the frequency difference between the voltage controlled oscillator and reference oscillator, and the control signal is used for increasing or decreasing the frequency of the voltage controlled oscillator.
Abstract translation: 一种频率和相位比较器，其包括频率鉴相器和相位比较器，其适用于锁相环。 当频率差在预定范围内时，相位比较器产生与参考振荡器的输出信号和压控振荡器的输出信号之间的相位差成比例的输出信号。 鉴频器产生与压控振荡器和参考振荡器之间的频差成比例的控制信号，控制信号用于增加或减少压控振荡器的频率。
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公开(公告)号：US3882400A
公开(公告)日：1975-05-06
申请号：US43048374
申请日：1974-01-03
Applicant: SONY CORP
Inventor： HAMADA OSAMU
CPC classification number: H03G3/348 , H03J5/0281 , H03J7/285
Abstract: A broadcast receiver having a tuner with a variable local oscillator for generating a local frequency signal, a divider for dividing the local frequency signal at a variable dividing ratio, a comparator for comparing the divided local frequency output with a reference signal and for controlling the local oscillator frequency, a counter having a variable content by which the dividing ratio of the divider is determined for selecting the radio broadcast frequency to which the receiver is tuned, a pulse generator operative to vary the counter content, and a detector circuit for producing an audio signal in response to an output from the tuner. The broadcast receiver is further provided with a non-voltaic memory device for storing signals representing the content of the counter when the counter is changed, means for reading out the signal stored in the non-voltaic memory device and for presetting into the counter the signal read out from the memory when a power source for the receiver is turned ON, and a muting circuit for muting the produced audio signal during the operation of counter to select the radio broadcast frequency.
Abstract translation: 具有调谐器的广播接收机，具有用于产生本地频率信号的可变本地振荡器，用于以可变分频比分频本地频率信号的分频器，用于将分频的本地频率输出与参考信号进行比较的比较器， 振荡器频率，具有可变内容的计数器，通过该可变内容确定分频器的分频比，用于选择接收机调谐到的无线电广播频率，可操作地改变计数器内容的脉冲发生器，以及用于产生音频的检测器电路 响应于来自调谐器的输出的信号。 广播接收机还具有非计数存储装置，用于在计数器改变时存储表示计数器的内容的信号，用于读出存储在非电压存储装置中的信号的装置，以及用于将信号预置到计数器中的信号 当接收机的电源接通时，从存储器读出，以及静音电路，用于在计数器的操作期间使产生的音频信号静音以选择无线电广播频率。
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4.发明公开RADIO COMMUNICATION DEVICE, RADIO COMMUNICATION METHOD, RADIO COMMUNICATION SYSTEM, RECORDING MEDIUM, AND PROGRAM 有权无线电通信装置，无线电通信方法，无线通信系统，记录介质和程序
公开(公告)号：EP1513292A4
公开(公告)日：2008-02-20
申请号：EP03757193
申请日：2003-05-26
Applicant: SONY CORP
Inventor： HAMADA OSAMU , KAKUDA HIROSHI , NISHIMURA KOJI , SASAI TAKASHI , ODAGIRI KAZUYA
CPC classification number: H04M1/6066 , B29C2045/1797 , G11B27/34
Abstract: A radio communication device, a radio communication method, a radio communication system, a recording medium, and a program capable of sending a response signal in response to an enquiry, to a mater only when execution of a radio communication is instructed. When a CPU (51) receives an enquiry signal, the CPU lights an LED (56). If a user who has seen the lighted LED (56) operates a connection response button (53), a response to the enquiry signal is transmitted. The connection response button (53) is operated by the user for instructing a radio communication to the enquiry signal. That is, even when a wireless headphone (2) exists in a range capable of radio communication with a master, the wireless headphone sends a response to an enquiry to the master and establishes connection only if the connection response button (53) is operated by the user. The present invention may be applied to a wireless storage server, a wireless headphone, and an audio reproduction device.
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公开(公告)号：AU2003235423A1
公开(公告)日：2003-12-22
申请号：AU2003235423
申请日：2003-05-26
Applicant: SONY CORP
Inventor： HAMADA OSAMU , KAKUDA HIROSHI , NISHIMURA KOJI , SASAI TAKASHI , ODAGIRI KAZUYA
Abstract: The present invention relates to a radio communication apparatus and a radio communications method, a radio communication system, a recording medium, and a computer program in which a response signal to an inquiry is returned to a master only when instructions to perform radio communications are issued. A CPU 51 blinks LED 56 when an inquiry signal is received, and transmits a response to the inquiry signal when a user who has referred to lighting of the LED 56 operates a connection response button 53. The connection response button 53 is operated when the user issues radio communications instructions with respect to the inquiry signal. In other words, even when wireless headphones 2 are within an area capable of radio communications with the master, only if the connection response button 53 is operated by the user, it sends to the master a response to the inquiry, and establishes connection. The present invention may be applied to a wireless storage server, wireless headphones, and audio reproduction apparatuses.
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Patent Agency Ranking
公开(公告)号：DE69524711D1
公开(公告)日：2002-01-31
申请号：DE69524711
申请日：1995-10-26
Applicant: SONY CORP
Inventor： WATANABE HIDEKAZU , HAMADA OSAMU , MATSUZAKI YOSHIHIRO
Abstract: A signal receiver such as a portable telephone set or pager becomes more convenient when receiving an incoming call. A radio signal receiver for receiving a signal transmitted via a radio communication network line includes an informing means operable when an incoming call is received. An informing processing done by the informing means can be varied by the setting.
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公开(公告)号：AU579853B2
公开(公告)日：1988-12-15
申请号：AU4016985
申请日：1985-03-20
Applicant: SONY CORP
Inventor： KITAZATO NAOHISA , HAMADA OSAMU
IPC: G01D3/00 , G01D3/028 , G01H7/00 , G11B20/10 , H03G5/00 , H03G5/16 , H03H17/00 , H03H17/02 , H04R3/04
Abstract: A digital graphic equalizer includes a pulse-sequence generator for generating a sequence of pulse signals, a first digital signal processor for filtering the pulse signals to produce a filtered signal, a digital-to-analog converter responsive to the filtered signal for producing a calibrating signal, and a loudspeaker responsive to the calibrating signal for propagating a calibrating sound in a listening environment, the frequency characteristics of the calibrating sound being subject to modification by the listening environment. A detector detects the calibrating sound as propagated in the listening environment and produces a detection signal representative thereof. An analog-to-digital converter is responsive to the detection signal for producing a digital signal corresponding thereto, and a second digital signal processor is responsive to the digital signal for producing a plurality of frequency-divided signals. A spectrum analyzer is responsive to the frequency-divided signals for analyzing the frequency characteristics of the calibrating sound as propagated in the listening environment and producing a compensating signal adapted to compensate for the modification by the listening environment of the frequency characteristics of the calibrating sound.
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公开(公告)号：GB2155671A
公开(公告)日：1985-09-25
申请号：GB8510106
申请日：1985-04-19
Applicant: SONY CORP
Inventor： HAMADA OSAMU
IPC: G06F7/00 , G06F9/00 , G06F9/06 , G06F9/22 , G06F9/24 , G06F9/38 , G06F17/14 , G06F17/15 , H03H17/02 , G06F13/00
Abstract: Described is a digital signal processor including at least two memories, that is, a microprogram memory for storing a series of microinstructions for instructing a digital signal processing procedure, and a coefficient memory for storing coefficient data required for performing a series of arithmetic operations on the digital signal data. These data being transferred and written into said microprogram memory and said coefficient memory from a host computer system. The coefficient memory has at least two pages corresponding to the total memory area which may be addressed during digital signal processing to be effected by said microinstructions. Page selection of the coefficient memory may be performed from said host computer system.
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