PROCESSING CIRCUIT FOR CARRIER WAVE CHROMINANCE SIGNAL

    公开(公告)号:JPS57160287A

    公开(公告)日:1982-10-02

    申请号:JP4674781

    申请日:1981-03-30

    Applicant: SONY CORP

    Abstract: PURPOSE:To prevent the generation of color distortion from the contour of a reproduced color picture by selecting the 1st output carrier wave chrominance signal at the presence of th vertical correlation of luminance signals and selecting the 2nd output carrier wave chrominance signal at absence. CONSTITUTION:The titled circuit is provided with a comb line filter 3 which obtains a 1st output carrier wave chrominance signal S'C1 whose unnecessary signal is removed by supplying an input carrier wave chrominance signal SC, an operation circuit 6 which obtains a 2nd output carrier wave chrominance signal S'C2 with approximately the same level as the signal SC1, a selection circuit 7 which selects the signals S'C1 and S'C2, and a detecting circuit 8 which detects the vertical correlation of a luminance signal SY relating to th signal SC. The signal SY from an input terminal 9 is applied to a synthesizing device 11 through a synthesizing device 11 and a delay line 12 and a synthesized output S'Y is supplied to a detecting circuit 13. When the absolute level of the signal S'Y is less than a prescribed value, a signal S'C1 is selected regarding that carrier wave chrominance signals have vertical correlation and, when th absolute value exceeds the prescribed value, a signal S'C2 is selected regarding the carrier signal as no vertical correlation.

    Dual band antenna device
    32.
    发明专利
    Dual band antenna device 有权
    双带天线设备

    公开(公告)号:JP2005184547A

    公开(公告)日:2005-07-07

    申请号:JP2003423423

    申请日:2003-12-19

    Abstract: PROBLEM TO BE SOLVED: To propose a dual band antenna device improved in practicality. SOLUTION: The dual band antenna device with a surface mounting type antenna part, is provided with: a joining means joining between a 1st mounting pattern which is selected according to a predetermined tuning frequency and in which an end part of the surface mounting type antenna part is mounted, and the ground; a matching means which is connected to a 2nd mounting pattern in which the other end part of the surface mounting type antenna part is mounted; and an electrostatic capacity forming means which is a pattern for the dual band, and forms an electric capacity to the ground of a part between the end part of the surface mounting type antenna part and the other end part. COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题:提出实用性提高的双频带天线装置。 解决方案:具有表面安装型天线部分的双频带天线装置设置有:接合装置,其接合根据预定调谐频率选择的第一安装图案,其中表面安装 型天线部分安装,地面; 匹配装置,其连接到安装有表面安装型天线部分的另一端部的第二安装图案; 以及作为双频带的图案的静电电容形成装置,并且形成到表面安装型天线部分的端部与另一端部之间的部分的接地电容。 版权所有(C)2005,JPO&NCIPI

    Surface-mount antenna and antenna mounting method

    公开(公告)号:JP2004356971A

    公开(公告)日:2004-12-16

    申请号:JP2003152443

    申请日:2003-05-29

    CPC classification number: H01Q1/38 H01Q9/0421

    Abstract: PROBLEM TO BE SOLVED: To provide a surface-mount antenna capable of using antennas common to various sets by making common the structure of an antenna formed by an electrode provided on the surface of a dielectric and by improving a pattern at a substrate side to perform the matching of an operation frequency and impedance matching, and to provide an antenna mounting method.
    SOLUTION: In the surface mounting antenna 12, the electrode 14 is formed on the surface of the dielectric for mounting onto the substrate 11. In the electrode 14, a grounded electrode 15 and a feeding electrode 16, where both the ends face the same direction, are formed. On the substrate, a ground mount pattern 22 connected to the grounded electrode of the electrode and a feeding mount pattern connected to the feeding electrode of the electrode are formed at a specific distance. The pattern width of a ground pattern 25 at the connection site between the ground mount pattern and the GND pattern of the substrate is adjusted for matching to the operating frequency as a change in inductance. The area of the surface of a feeding pattern 24 opposite to a feeding mount pattern 23 at the specific distance is changed. As a result, capacitance consisting of the dielectric constant of the substrate is changed and impedance matching is achieved.
    COPYRIGHT: (C)2005,JPO&NCIPI

    INFORMATION COMMUNICATION SYSTEM, DEVICE WITH BUILT-IN COMMUNICATION FUNCTION AND INFORMATION COMMUNICATION METHOD

    公开(公告)号:JP2000174676A

    公开(公告)日:2000-06-23

    申请号:JP34119198

    申请日:1998-12-01

    Applicant: SONY CORP

    Inventor: KANEKO MASAYASU

    Abstract: PROBLEM TO BE SOLVED: To stably perform non-contact close transmission. SOLUTION: Antennas 11 and 21 are provided in each of two devices 10 and 20 with built-in communication function. The natural resonance frequency of each of the antennas 11 and 21 is a value shifted from a communication frequency by a shift amount decided corresponding to a coupling coefficient at the time of mutually performing communication so as to maximize the frequency characteristic of a voltage level induced by mutual inductance near the communication frequency. Then, by using the mutual inductance generated by bringing such two antennas 11 and 21 close, the two devices 10 and 20 with the built-in communication function perform information communication with each other. In such a manner, by shifting the natural resonance frequency of the respective antennas 11 and 21 from the communication frequency by a fixed amount, even in the case that the antennas are extremely close to each other and the coupling coefficient is high, stable information communication is performed.

    RECORDING FORM DECISION DEVICE
    35.
    发明专利

    公开(公告)号:JP2000152158A

    公开(公告)日:2000-05-30

    申请号:JP32246098

    申请日:1998-11-12

    Applicant: SONY CORP

    Abstract: PROBLEM TO BE SOLVED: To realize a recording form decision device for a VTR that can comparatively simply and surely decide a recording format of a signal recorded on a recording medium. SOLUTION: After amplifying a signal reproduced by a rotary head 1 with a head amplifier 3 having an automatic gain control function up to a prescribed level, a narrow band pass filter BPF1 (5) and a detection circuit DET1 and LPF (8) that amplifies and detects an output of the BPF1 (5) are used to select a frequency of the signal and the signal is detected. Then a differential comparator COMP1 (10) compares the signal with a reference voltage REF1 (9), an integration circuit 1 (11) integrates the result of comparison, a hold circuit (12) holds the integrated signal, a differential comparator COMP2 (13) compares the holding signal with a reference voltage REF2 (14), and a microcomputer 15 decides a recording format of the signal recorded on a recoding medium based on an output of the comparison result.

    FM DEMODULATION DEVICE AND METHOD
    36.
    发明专利

    公开(公告)号:JPH10190356A

    公开(公告)日:1998-07-21

    申请号:JP34287096

    申请日:1996-12-24

    Applicant: SONY CORP

    Inventor: KANEKO MASAYASU

    Abstract: PROBLEM TO BE SOLVED: To perform the FM demodulation processing having an excellent S/N by arbitrarily varying a passing band. SOLUTION: FM signals inputted through a band-pass filter 71 are inputted to an adder 21 and inputted to the adder 21 after being delayed for prescribed time in a delay circuit 22. The adder 21 adds two inputs and outputs them to a PLL detection circuit 72. The delay time of the delay circuit 22 is set to the (n) fold of the cycle τc in the center frequency fc of the FM signals. Thus, in the case of output of the adder 21, the FM signals with high correlation are turned to a double level. A variable gain circuit 73 limits the amplitude of demodulation signals outputted by the PLL detection circuit 72, supplies them to a variable delay circuit 32 and controls the variable delay time of the variable delay circuit 32.

    CHROMA SIGNAL PROCESSING CIRCUIT FOR VIDEO TAPE RECORDER

    公开(公告)号:JPH0898207A

    公开(公告)日:1996-04-12

    申请号:JP6642495

    申请日:1995-03-24

    Applicant: SONY CORP

    Inventor: KANEKO MASAYASU

    Abstract: PURPOSE: To obtain a chroma signal processing circuit which improves dullness of the waveform in the vicinity of a noncorrelation part of a chroma signal and has a high S/N improvement effect by subjecting the non-correlation part of the reproduced chroma signal to amplitude limiting processing and feeding it back. CONSTITUTION: When the reproduced chroma signal outputted from a first comb line filter 10 is inputted to an adder 22 of a second comb line filter 20 through a 18 delay line 23, this adder 22 extracts and outputs the non-correlation part and the noise component of the signal from the output of an adder 21. A limiter 24 subjects the non-correlation part or the output of the adder 22 to amplitude limiting processing, and an attenuator 25 attenuates the output of the limiter 24 and feeds it back. By this constitution, the noise component of the reproduced chroma signal is attenuated to the original amplitude by the attenuator 25, and the non-correlation part has the same small amplitude as the noise component by the limiter 24. Consequently, dullness of the waveform in the vicinity of the non-correlation part is improved to prevent color slurring and color blot, and a high S/N improvement effect is obtained.

    IMAGE PICKUP DEVICE WITH ATTACHABLE/DETACHABLE VIEW FINDER

    公开(公告)号:JPH07193736A

    公开(公告)日:1995-07-28

    申请号:JP34824193

    申请日:1993-12-25

    Applicant: SONY CORP

    Abstract: PURPOSE:To easily conduct sound monitoring in addition to picture monitoring for a picture through a view finder part separated from a body part by preparing the view finder part attachably/detachably to/from the body part. CONSTITUTION:This image pickup device is provided with the body part 11 including an image pickup part 31, an image pickup output processing part 32, microphones 17L, 17R, and a TV signal forming part 45 for sending a color TV signal based on a video signal from the processing part 32 and sound signals fro the microphones 17L, 17R, the view finder part 12 prepared attachably/ detachably to/from the body part 11 and including a picture display part 20 for obtaining a video signal and a sound signal based on a color TV signal sent from the TV signal forming part 45 and reproducing a picture based on the video signal, a speaker 22 capable of reproducing sound based on the sound signal and a stereo type earphone connection terminal 23.

    INVERSION PREVENTION CIRCUIT
    39.
    发明专利

    公开(公告)号:JPH0591474A

    公开(公告)日:1993-04-09

    申请号:JP25124691

    申请日:1991-09-30

    Applicant: SONY CORP

    Inventor: KANEKO MASAYASU

    Abstract: PURPOSE:To improve the utilization ratio of an upper side-band and to well prevent an inversion phenomenon in an excellent S/N. CONSTITUTION:An FM signal YFM is supplied to an adder 12 and the output of the adder 12 is supplied to a limiter 13 having a non-linear gain. The output of the limiter 13 is supplied to a delay circuit 31 of taualpha/2 and the output of the limiter 13 is supplied to an adder 14 directly and via a delay circuit 15 of tauD. The output of the adder 14 is supplied to the adder 12 via an attenuator 16 to add it to the FM signal. When the FM signal level is sufficiently large, a sine filter having a peak frequency fc=1/2tauD is formed. By setting 'D' so that the fc can be the upper side-band, the utilization ratio of the upper side- band can be improved and resolution in demodulation can be improved. The smaller the FM signal level gets, the closer to fp=1/2(tauD+taualpha) the peak frequency becomes and the larger a boost operation becomes. By setting the 'taualpha'so that the fp can be near the maximum frequency displacement of a carrier wave, the side-band can be suppressed and the inversion phenomenon can well be prevented in an excellent S/N.

    CHROMA SIGNAL PROCESSING CIRCUIT FOR VIDEO TAPE RECORDER

    公开(公告)号:JPS62263794A

    公开(公告)日:1987-11-16

    申请号:JP10728186

    申请日:1986-05-10

    Applicant: SONY CORP

    Inventor: KANEKO MASAYASU

    Abstract: PURPOSE:To improve the sag of a waveform and to obtain a high S/N improving effect by limiting the amplitude of the non-correlation part of a reproducing chroma signal and reducing the feedback quantity of the non-correlation part. CONSTITUTION:When the reproducing chroma signal is supplied to an input terminal 1, a crosstalk component is generally removed by a comb-line filter 10 and fed to the adder 21 of a comb-line filter 20. The non-correlation part and the noise component of the signal are outputted from an adder 22 and the noise component of small amplitude is amplified with a prescribed gain and outputted and the non-correlation part of large amplitude is amplified and limited in amplitude and outputted and attenuated by an attenuator 25. The output of the attenuator 25 is fed back to the adder 21 and the chroma signal output of the difference component to the reproducing chroma signal is outputted from an output terminal 2. As for the non-correlation part, a feed back constant k 0 is obtained by the operation of a limiter 24, the feedback quantity is extremely reduced.

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