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2. 发明专利

JP2002165151A DIGITAL/ANALOG TELEVISION SIGNAL RECEIVING APPARATUS 失效
公开(公告)号：JP2002165151A
公开(公告)日：2002-06-07
申请号：JP2000362479
申请日：2000-11-29
申请人： FUNAI ELECTRIC CO
发明人： ONOMATSU TAKEHIRO
IPC分类号： H03J7/22 , H04B1/16 , H04N5/44 , H04N5/46
摘要： PROBLEM TO BE SOLVED: To provide a digital/analog television signal receiving apparatus, capable of eliminating frequency offsets for accurate reception, even if digital television signal is received. SOLUTION: A digital/analog television signal receiving apparatus 10 includes a tuner 12 for receiving television signals of ATSC scheme and NTSC scheme. During automatic pre-setting, an analog television signal of NTSC scheme is received by automatic fine tuning (AFT) and the offset amount for each receivable channel is detected by a CPU 26. Upon completion of the automatic pre-setting, the CPU 26 calculates the mean value of the offset amount for each channel to store the calculated mean value in a memory 28 as fine tuning data. Therefore, during tuning processing, when a digital television signal of ATSC scheme is received, channel data can be set, using the fine tuning data. In other words, shifting of frequency can be eliminated.

3. 发明专利

JP3019333B2 Auto-tuning system 失效
公开(公告)号：JP3019333B2
公开(公告)日：2000-03-13
申请号：JP24890989
申请日：1989-09-25
申请人：カシオ計算機株式会社
发明人：和幸黒沢
IPC分类号： H04N5/50 , H03J7/18 , H03J7/22

4. 发明专利

JPH11163751A RADIO RECEIVER CONTROL METHOD AND RECORD MEDIUM RECORDED WITH CONTROL PROGRAM THEREFOR 失效
公开(公告)号：JPH11163751A
公开(公告)日：1999-06-18
申请号：JP32915997
申请日：1997-11-28
申请人： NIPPON ELECTRIC IC MICROCOMPUT
发明人： IMAMURA KENJI , FUKUDA KANEYUKI , NIRASAWA SUMIKO
IPC分类号： H03J7/22 , H04B1/16
摘要： PROBLEM TO BE SOLVED: To reduce in compatibility of audible feeling and to eliminate unnecessary frequency switchings by calculating time up to receiving frequency switching from an average speed and the receiving state of a receiving frequency, thereby switching the receiving frequency after the lapse of the calculated time. SOLUTION: This receiver is provided with a speed sensor 14, a microcomputer 12 which performs automatic tracking based on radio data system data, a field intensity signal and a speed and digital tuning processing and a PLL circuit 11, which tunes an FM tuner pack 2 to a frequency based on frequency data from the microcomputer 12, stores a reception frequency switching time table 12b in a memory area of the microcomputer 12, and sets the switching, so that it makes the switching in a middle slow speed area slow and the switching in a high speed area fast. The microcomputer 12 calculates the average speed of a vehicle, makes the time up to receiving switching from the average speed and the receiving state of a receiving frequency calculated and switching of the receiving frequency performed after the elapse of this time.

5. 发明专利

JPH10335989A RECEIVER 失效
公开(公告)号：JPH10335989A
公开(公告)日：1998-12-18
申请号：JP15766598
申请日：1998-06-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： ISHIKAWA ATSUSHI
IPC分类号： H03J7/22 , H03J7/28 , H04B1/26
摘要： PROBLEM TO BE SOLVED: To obtain a receiver which has fast tuning function at a low cost by operating the difference between the frequency value of a measured intermediate frequency and the frequency value of a prescribed intermediate frequency, performing additive correction of the difference to a tuning frequency and retuning. SOLUTION: An IF counting part 6b of a microcomputer part 6A measures an intermediate frequency, that is a difference between a local sending frequency which corresponds to a tuning frequency and an antenna-receiving frequency which is inputted via an IF detecting part 3. Next, a calculating part 6c operates the difference between a measured value and 450 kHz complete tuning frequency. The tuning frequency is reset by adding a frequency difference to a scan frequency, i.e., a tuning frequency that is generated by a tuning frequency setting part 6d. A PLL part 8 scans a tuning frequency which is set by the part 6d, i.e., a receiving wave for each frequency value, that adds a scan frequency which gets a value for each frequency of a prescribed interval to a prescribed intermediate frequency. With this, a receiver completely tunes in with respect to any antenna input frequency.

6. 发明专利

JPS6318895B2 失效
公开(公告)号：JPS6318895B2
公开(公告)日：1988-04-20
申请号：JP13414080
申请日：1980-09-25
申请人： RCA CORP
发明人： JON GUTSUDOCHAIRUDO NOORI HENDAASON , ROBAATO JOSEFU MATSURO
IPC分类号： H03J7/00 , H03J1/00 , H03J5/02 , H03J5/24 , H03J7/18 , H03J7/22 , H03J7/28

7. 发明专利

JPS5819168B2 失效
公开(公告)号：JPS5819168B2
公开(公告)日：1983-04-16
申请号：JP11621277
申请日：1977-09-26
申请人： SHARP KK
发明人： MINORA NOBUO , YOSHINAGA YASUKAZU , MATSUMURA ISAO , YOROI TAKAO , NAKAI KAZUHIRO
IPC分类号： H03J7/18 , H03J7/22 , H03J7/28 , H04N5/44

8. 实用新型

JPS568271Y2 失效
公开(公告)号：JPS568271Y2
公开(公告)日：1981-02-23
申请号：JP4127474
申请日：1974-04-10
IPC分类号： H03J7/18 , H03J7/02 , H03J7/22 , H04B1/26 , H04H1/00 , H04H40/45 , H05H5/00

9. 发明专利

JP2009302821A Receiver and reception method, and program 审中-公开
标题翻译：接收和接收方法和程序
公开(公告)号：JP2009302821A
公开(公告)日：2009-12-24
申请号：JP2008154034
申请日：2008-06-12
申请人： Sony Corp , ソニー株式会社
发明人： HASEGAWA AKIRA , TAKAOKA KATSUMI
IPC分类号： H04B1/16 , H03J7/22 , H04N5/44
CPC分类号： H04L27/0014 , H04L7/0029 , H04L2027/003 , H04L2027/0053 , H04L2027/0069
摘要： PROBLEM TO BE SOLVED: To exactly detect that a received signal is captured.
SOLUTION: This receiver 31 is provided with a timing correction circuit 32 and a lock detector 34, wherein a signal indicating an integration value of an error of the received signal is supplied from an integration circuit 43 held by a loop filter 43 of the timing correction circuit 32 to the lock detector 34. The lock detector 34 removes low frequency components of the signal indicating the integration value of the error of the received signal, monitors the signal, and detects that the timing correction circuit 32 captures the received signal when the signal is within a predetermined range during predetermined time. For example, the receiver 31 is applicable to a receiver which receives digital broadcast etc.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：准确地检测到接收到的信号被捕获。解决方案：该接收器31设有定时校正电路32和锁定检测器34，其中指示接收信号的误差的积分值的信号由积分电路43提供，该积分电路43由环路滤波器43 定时校正电路32提供给锁定检测器34.锁定检测器34去除指示接收信号的误差的积分值的信号的低频分量，监视信号，并检测定时校正电路32捕获接收信号当信号在预定时间内在预定范围内时。例如，接收机31适用于接收数字广播等的接收机。（C）2010，JPO＆INPIT

10. 发明专利

JP2007288327A Oscillation control apparatus, program and channel selecting apparatus 审中-公开
标题翻译：振荡控制装置，程序和通道选择装置
公开(公告)号：JP2007288327A
公开(公告)日：2007-11-01
申请号：JP2006110880
申请日：2006-04-13
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： TAKEI HIROTSUGU
IPC分类号： H03J7/22 , H04B1/26
CPC分类号： H03L7/099 , H03L7/07 , H03L7/085
摘要： PROBLEM TO BE SOLVED: To allow an oscillation frequency of an oscillation circuit to become a target frequency at a high speed.
SOLUTION: An oscillation control apparatus controls the oscillation frequency of the oscillation circuit to be the target frequency. The apparatus is provided with a frequency acquiring section for outputting a plurality of values of a control signal for increasing or decreasing the oscillation frequency of the oscillation circuit as each of the values increases or decreases, and acquiring the oscillation frequency of the oscillation circuit in each of the values; a frequency characteristic calculator for calculating data indicating the relation between the oscillation frequency and the values of the control signal using a least-squares method, on the basis of a plurality of values of the control signal outputted in the frequency acquiring section and a plurality of oscillation frequencies acquired by the frequency acquiring section; and a control signal outputting section for outputting a control signal in which the oscillation frequency becomes the target frequency, on the basis of the data calculated by the frequency characteristic calculator.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：使振荡电路的振荡频率高速化成目标频率。解决方案：振荡控制装置将振荡电路的振荡频率控制为目标频率。该装置设置有频率获取部分，用于当每个值增加或减小时，输出用于增加或减少振荡电路的振荡频率的控制信号的多个值，并且获取每个振荡电路的振荡频率的价值观; 频率特性计算器，用于基于在频率获取部分输出的控制信号的多个值来计算指示振荡频率与控制信号的值之间关系的数据的数据，并使用最小二乘法由频率获取部获取的振荡频率; 以及控制信号输出部分，用于基于由频率特性计算器计算出的数据，输出振荡频率成为目标频率的控制信号。版权所有（C）2008，JPO＆INPIT

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