公开(公告)号：JPH0637563A

公开(公告)日：1994-02-10

申请号：JP21199492

申请日：1992-07-16

Applicant: SONY CORP

Inventor： ENDO MITSUNORI ,  USUI HIROBUMI ,  NAKANO KENJI ,  AMANO TOSHIO

IPC: H03G3/20 ,  H03G3/30 ,  H03G5/16

Abstract: PURPOSE:To obtain an automatic sound volume adjusting device capable of eliminating sound volume adjustment at every channel selection, or in the broadcast of CM, or every exchange of a CD, and being comprised inexpensively by automatically adjusting a sound volume level based on the one set by a user when the sound volume levels of audio signals inputted to an acoustic device and a receiver are different from each other. CONSTITUTION:The sound volume level of an audio output signal So outputted from a sound volume adjusting circuit 2 is detected by a sound volume detection circuit 3 at need, and it is compared with a preset sound volume level stored in a sound volume level memory circuit 4 by a sound volume level comparator 5. When difference between both sound volume levels exists, a differential sound volume level is adjusted by the sound volume adjusting circuit 2. In other words, the sound volume adjustment so as to increase the sound volume level of an audio input signal Si by the differential sound volume level is performed when a preset sound volume level set at a user side exceeds the sound volume level. As a result, the signal So with sound volume level set in advance is outputted from the sound volume adjusting circuit 2 in spite of the size of the audio input signal Si.

公开(公告)号：JPH05199487A

公开(公告)日：1993-08-06

申请号：JP2605592

申请日：1992-01-17

Applicant: SONY CORP

Inventor： AMANO TOSHIO ,  ODA OSAMU

IPC: G11B20/00 ,  H04N5/44 ,  H04N5/765 ,  H04N5/782

Abstract: PURPOSE:To automatically switch an antenna in accordance with each selected channel. CONSTITUTION:The field intensity is monitored based on the AGC signal outputted from an intermediate frequency amplifying circuit 1c in a state where a signal received through an antenna 3 is selected by a switch 2f and outputted to a CRT 1e. Then the switch 2f is automatically switches to a VTR channel RF modulator 2e when the field intensity is reduced less than a reference level. At the same time, the field intensity is monitored based on the AGC signal outputted from the circuit 1c in a state where the signal received from the modulator 2e is selected by the switch 2f and outputted to the CRT 1e. Then the switch 2f is automatically switched to a two-distributor 2a (antenna 3) when the field intensity is reduced less than the reference level.

公开(公告)号：JPH0530115B2

公开(公告)日：1993-05-07

申请号：JP1824788

申请日：1988-01-28

Applicant: SONY CORP

Inventor： SHIOMI TAKAYUKI ,  WATANABE KEIKO ,  NAKATANI TOMOMI ,  AMANO TOSHIO

IPC: H04N9/00 ,  H04N9/72 ,  H04N9/74

公开(公告)号：JPH05114885A

公开(公告)日：1993-05-07

申请号：JP30112891

申请日：1991-10-21

Applicant: SONY CORP

Inventor： AMANO TOSHIO

IPC: H04B1/034 ,  H04B10/00 ,  H04B10/114 ,  H04B10/524 ,  H04B10/564 ,  H04Q9/00

Abstract: PURPOSE:To reduce the consumption current in the transmitter for infrared-ray type remote controller. CONSTITUTION:This transmitter is provided with an encoder 21 repeatedly forming the key data corresponding to the depressed key from among operation keys 1 during the depression of the key and a modulation circuit 23 modulating a carrier pulse P22 by the key data from this encoder 21. It is also provided with a light emitting element 4 outputting infrared ray according to the output P23 of this modulation circuit 23 and circuits 11 to 13 intensifying the infrared- ray during the constant time after a key executing the operation once for each depression of the key is pushed.

公开(公告)号：JPH0564258A

公开(公告)日：1993-03-12

申请号：JP24499191

申请日：1991-08-30

Applicant: SONY CORP

Inventor： SAITO MITSUMASA ,  AMANO TOSHIO

IPC: H04Q9/00

Abstract: PURPOSE:To make the bi-directional conversion of a remote control device practical. CONSTITUTION:This device is provided with a command signal transmitting means 13 transmitting a command signal corresponding to an operating means 11 (key input) for executing remote control to the device to be controlled 20 by an infrared ray, a signal receiving means 14 receiving an information signal using radio wave indicating the status of the device to be controlled 20 corresponding to the command signal and a display part 15 displaying visual information obtained from the information signal. Here, a transmitting signal viewed from the remote control device 10 is the command signal of the infrared ray and the receiving signal is the information signal using radio wave. Though the infrared ray needs a direction to some degree, radio wave needs no fixed direction.

公开(公告)号：JPH03226185A

公开(公告)日：1991-10-07

申请号：JP2070290

申请日：1990-01-31

Applicant: SONY CORP

Inventor： AMANO TOSHIO ,  BABA SUMIO

IPC: H04N5/208

Abstract: PURPOSE:To suppress the side effect of signal processing such as blur of a picture by superimposing picture contrast information onto a control signal and applying stronger control toward darker component and weaker control toward lighter component. CONSTITUTION:A video signal with a polarity going to a low level at a bright part and to a high level at a dark part is superimposed onto a control voltage at a control terminal 1c through a coupling comprising a resistor R3 and a capacitor C3 by utilizing principles that slurring or noise is strongly visible in the dark part in the picture but not eminent in the bright part in general. Thus, the control voltage changes to a high level at the dark part of the picture and changes to a low level at the bright part. Thus, the control degree of sharpness is applied more strongly to the dark part where slurring or noise is eminent on the pattern and the degree is weaker at the bright part where they are not eminent conversely, then the side effect of a blur picture is suppressed.

公开(公告)号：JPH03143187A

公开(公告)日：1991-06-18

申请号：JP28260689

申请日：1989-10-30

Applicant: SONY CORP

Inventor： AMANO TOSHIO ,  ODA OSAMU

IPC: H04N9/73

Abstract: PURPOSE:To effectively reduce blooming and to obtain an image with fidelity to a transmitted image by controlling the gamma feature of a gamma correcting circuit through a detected output from a blooming detecting circuit and controlling contrast and color density control circuits. CONSTITUTION:A CPU 22 detects the white level peak value of a Y signal. When the peak value is not detected, a gamma correcting circuit 20 is turned off (state of gamma 1). When the white level peak value is detected, the gamma correcting circuit 20 is turned on, namely, the gamma correction is continuously controlled so as to be intensified. The CPU 22, after the detection of the white level peak, controls to lower or raise picture adjusting voltage to a color density control circuit and a contrast control circuit in a video signal processing circuit 1 through a digital/analog converting circuit D/A 23 to end.

公开(公告)号：JPH0344273A

公开(公告)日：1991-02-26

申请号：JP17965189

申请日：1989-07-12

Applicant: SONY CORP

Inventor： AMANO TOSHIO ,  ODA OSAMU

IPC: H04N5/05 ,  H04N5/44

Abstract: PURPOSE:To always obtain an optimum picture quality by providing a means discriminating the level of an AGC signal used for a tuner and a preset means for the kind of an external video source. CONSTITUTION:A loop gain of an automatic frequency control (AFC) circuit 13 controlling a horizontal deflection circuit 18 is made variable, means 27, 19 discriminating the level of an AGC signal used for tuners 2, 3 and means 22, 24 presetting the kind of an external video source are provided. When a broadcast signal Vo selected by the tuners 2,3 is displayed and the AGC signal represents a weak electric field, the loop gain of the AFC circuit 13 is decreased, when video signals V1, V2 supplied from the external video source are displayed, a video tape recorder as a kind of the external video source is preset to increase the loop gain of the AFC circuit 13. Thus, an optimum picture quality is always obtained automatically.

公开(公告)号：JPH02233067A

公开(公告)日：1990-09-14

申请号：JP5283889

申请日：1989-03-07

Applicant: SONY CORP

Inventor： AMANO TOSHIO ,  ODA OSAMU

IPC: H04N5/14

Abstract: PURPOSE:To execute sharpness control by outputting a control signal by executing arithmetic processing based on selected adjusting data for the sampled picture data by one screen. CONSTITUTION:When the sampling data by one screen of a luminance signal obtained by a sampling circuit 14A is supplied through an A/D conversion circuit 15A, an arithmetic processing part 16 executes the processing of data collection, etc., and obtains the information of a 'brightness' level on the screen. Besides, it executes similarly the arithmetic processing for AGC voltage data supplied from the sampling circuit 14B, as well and obtains the information of a received electric wave level. Based on a value (constant 1) to be the standard of brightness obtained in such a manner and the value (constant 2) similarly obtained from the AGC voltage, the adjusting data whose parameter is the constant 1, for instance, is read out from a ROM 17, and the control signal is determined by executing the arithmetic processing of the read out adjusting data and the constant 2.

公开(公告)号：JPH02131698A

公开(公告)日：1990-05-21

申请号：JP28523688

申请日：1988-11-11

Applicant: SONY CORP

Inventor： TANABE AKIRA ,  AMANO TOSHIO

IPC: H04B10/00 ,  H04B10/11 ,  H04B10/114 ,  H04N7/173 ,  H04Q9/00

Abstract: PURPOSE:To attain multi-function of a commander device by providing a learning function, a voice transmission function and a two-way communication function to one commander device in a systematically integrating manner. CONSTITUTION:When a mode setting key 2 turned to the normal position, a microcomputer 11 is set in the two-way communication function mode. When a variable resistor 5 is turned in a prescribed direction to turn on a power switch 25, a voice demodulation circuit 22 and an amplifier 24 are operated. The variable resistor 5 is turned in a prescribed direction to turn on a power switch 25 and to activate the voice demodulation circuit 22 and the amplifier 24. When the mode setting key 2 is turned to the position of learning, a mode changeover switch 17 is switched to the learning function mode and a microcomputer 11 is set to the learning function mode. The learning function, the voice transmission function and the two-way communication function are provided to the commander to attain multi-function commander.