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1. 发明专利

JP2009152974A Video reproduction device, and video reproduction method 审中-公开
标题翻译：视频再现设备和视频再现方法
公开(公告)号：JP2009152974A
公开(公告)日：2009-07-09
申请号：JP2007330173
申请日：2007-12-21
申请人： Toshiba Corp , 株式会社東芝
发明人： IKEGAMI KIYOSHI , TAIRA KAZUHIKO , YAMAGATA YOICHIRO , KIKUCHI SHINICHI
IPC分类号： H04N5/93 , G11B20/10 , G11B27/00 , H04N5/91
摘要： PROBLEM TO BE SOLVED: To provide a video reproduction device capable of viewing a recorded program in a short period of time.
SOLUTION: The video reproduction device is characterized by including: a reception part for receiving a television broadcast; a recording control part for recording the received television broadcast in a recording medium; a program selection part for selecting a main reproduction program and a sub reproduction program to be simultaneously reproduced from among a plurality of programs recorded in the recording medium; a reproduction part for reproducing the selected main reproduction program and sub reproduction program from the recording medium; and a video synthesizing part for synthesizing a video signal of the main reproduction program and a video signal of the sub reproduction program so that the main reproduction program is displayed on a parent screen and the sub reproduction program is displayed on a child screen provided in a part of the parent screen.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够在短时间内观看录制节目的视频再现装置。解决方案：视频再现设备的特征在于包括：用于接收电视广播的接收部分; 用于将接收的电视广播记录在记录介质中的记录控制部分; 节目选择部分，用于从记录在记录介质中的多个节目中选择要同时再现的主再现节目和副再现节目; 用于从所述记录介质再现所选择的主再现程序和副再现程序的再现部分; 以及用于合成主再现程序的视频信号和副再现程序的视频信号的视频合成部件，使得主再现程序被显示在母屏幕上，并且副再现程序被显示在设置在父屏幕的一部分。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JPH0418881A WAVEFORM EQUALIZING DEVICE 失效
公开(公告)号：JPH0418881A
公开(公告)日：1992-01-23
申请号：JP8392890
申请日：1990-03-30
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： NAKAMURA KAZUHIRO , IKEGAMI KIYOSHI
IPC分类号： H04N5/21 , G11B20/02 , H04N5/93
摘要： PURPOSE:To correctly generate a tap coefficient for canceling waveform distor tion by adding a first and a second tap coefficient groups using independently respectively two kinds of training pulses by a definite ratio, and supplying an obtained third tap coefficient group to a transversal filter. CONSTITUTION:The first and the second tap coefficient groups using independent ly respectively two kinds of the training pulses are added by the definite ratio by a mixer 43 as making them correspond to each other, and the third tap coefficient group obtained as the result of this addition is supplied as an actual tap coefficient to the transversal filter 14. Since the third tap coefficient group is not the mean value of the first and the second tap coefficient groups, but it is generated by some mixing ratio, even if the imbalance of upper and lower side-bands due to FM demodulation exists for two kinds of training signals, the tap coefficient of form in which the imbalance is corrected can be obtained. Thus, even if the deformation of a reference signal generated by the FM demodulation exists, the tap coefficient for canceling the waveform distortion can be generated correctly.

3. 发明专利

JP2001230689A GROUND-WAVE BROADCASTING RECEIVER 失效
公开(公告)号：JP2001230689A
公开(公告)日：2001-08-24
申请号：JP2000036689
申请日：2000-02-15
申请人： TOSHIBA CORP
发明人： SATO MAKOTO , TAGA NOBORU , SEKI TAKASHI , IKEGAMI KIYOSHI
IPC分类号： H04B1/16 , H04H20/00 , H04H40/18 , H04J11/00 , H04N5/44 , H04N17/00 , H04H1/00
摘要： PROBLEM TO BE SOLVED: To automatically acquire channel information of analog broadcasting and digital broadcasting, in a short time. SOLUTION: At initial setting, such as when turning on a power source, a channel auto-search is started, the channels for analog broadcasting and digital broadcasting are successively searched without distinguishing them, and the presence/absence of broadcasting on each of channels is discriminated. When there is broadcasting, it is discriminated as to whether broadcasting is analog broadcasting or digital broadcasting and the discriminated result is registered in a channel information memory part 113. When channel designation of a user is received, the information of the relevant channel is read out of the memory part 113, it is discriminated from that information whether the designated channel is analog broadcasting or digital broadcasting and in the case of analog broadcasting, an analog demodulated output is selectively derived, but in the case of digital broadcasting a digital demodulated output is derived selectively.

4. 发明专利

JP2000236363A FRAME SYNCHRONIZING SIGNAL DETECTOR AND CARRIER REPRODUCING DEVICE USING THE SAME 失效
公开(公告)号：JP2000236363A
公开(公告)日：2000-08-29
申请号：JP3856899
申请日：1999-02-17
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： IKEGAMI KIYOSHI , NISHIKAWA MASAKI
IPC分类号： H04L27/227 , H04L7/00 , H04L7/08 , H04L27/22
摘要： PROBLEM TO BE SOLVED: To provide a frame synchronizing signal detector capable of exactly detecting a frame synchronizing signal even when offset occurs in a carrier frequency. SOLUTION: This device is provided with plural multilevel means 31a-31e for making the inter-symbol difference of demodulated signals I1 and Q1 formed by demodulating an input signal, to which phase modulation is applied, into multilevel with respectively mutually different thresholds, plural correlative means 31f-31h for respectively counting correlation between these respective multilevel signals and a signal ΔUW showing the preset inter-symbol difference of the frame synchronizing signal and detecting means 31i-31l for detecting any one of these respective count values practically exceeds a preset reference value α.

5. 发明专利

JPH0583604A LOW-PASS SUBSTITUTION DEVICE FOR MUSE DECODER 失效
公开(公告)号：JPH0583604A
公开(公告)日：1993-04-02
申请号：JP24296191
申请日：1991-09-24
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： UI SHUNJI , IKEGAMI KIYOSHI
IPC分类号： H04N5/217 , H04N7/015
摘要： PURPOSE:To make flicker on a screen hard to occur by preventing the flicker on the screen from being prominent when control for low-pass substitution is performed by the S/N of an input MUSE signal. CONSTITUTION:When the decode output of a MUSE decoder part 201 is replaced by a low-pass component passing a delay and phase matching part 202, a subtractor 203, and a low-pass filter 204 in an adder 205, the noise level of the input MUSE signal is detected by a noise level detection circuit 211, and the data conversion of a value corresponding to the noise level is performed at a data conversion part 310. The gain of the low-pass component replaced corresponding to the value is controlled by a gain low-pass substitution quantity switching circuit 300.

6. 发明专利

JPH01235429A SYNCHRONIZING SIGNAL DETECTION CIRCUIT 失效
公开(公告)号：JPH01235429A
公开(公告)日：1989-09-20
申请号：JP6026288
申请日：1988-03-16
申请人： TOSHIBA CORP , TOSHIBA AUDIO VIDEO ENG
发明人： IKEGAMI KIYOSHI
IPC分类号： H04J7/00
摘要： PURPOSE:To reduce hardware and cost and to improve the stability of an action by constituting a title circuit in such a way that serial/parallel-converting input digital modulation signals into data of two sequences and a synchronizing signal detection pulse is outputted when the data is compared with a reference digital pattern and when the number of non-coincident bits is less than a threshold. CONSTITUTION:An input digital modulation signal A among two kinds of the digital modulation signals whose transmission rate is in the relation of two to one is serial/parallel converted by the clock signal fck having the same frequency as the transmission rate of the digital modulation signal whose transmission rate is higher. Thus, subsequent delay detection means 2 and 3 and a synchronous signal detection system can execute the signal processing not by the transmission rate of the input digital modulation signal but by using the fck/2 of the clock signal having the same frequency as the transmission rate of the digital modulation signal having the lower transmission rate. Thus, it is unnecessary to switch a clock reproducing system by the transmission rate of the input digital modulation signal, hardware and cost are reduced, and the stability of the action is improved.

7. 发明专利

JPS63217753A CARRIER RECOVERY CIRCUIT 失效
公开(公告)号：JPS63217753A
公开(公告)日：1988-09-09
申请号：JP4881487
申请日：1987-03-05
申请人： TOSHIBA CORP , TOSHIBA AUDIO VIDEO ENG
发明人： ISHIKAWA TATSUYA , IKEGAMI KIYOSHI
IPC分类号： H04L27/227 , H04L27/22
摘要： PURPOSE:To relax the limit of a frequency pull in range and to quicken the speed acquisition of synchronism of a carrier recovery loop by decreasing the frequency error between an input signal and the local oscillation frequency sufficiently in advance. CONSTITUTION:A QPSK modulation signal A is subjected to synchronizing detection, digitized (7) and fed to a decode circuit 9 and a tan theta circuit 8. A predetermined reference pattern is detected from the output of the circuit 9 in a detection circuit 30 in advance, and when the carrier asynchronizing state is detected, an AFC ON signal is generated. Moreover, a data from the circuit 8 represents the symbol location phase deviation. A phase error is detected in each phase quadrant from a QPSK signal in a delay circuit 41, its output is integrated (42) by N-sample, converted (43) into a frequency error per QPSK symbol and the converted output is added (32) to the output of a loop filter 31 after the release of the AFC mode and the frequency of the local oscillator 16 is offset. As a result, the difference between the input signal and the local oscillation frequency is sufficiently decreased to enter the pull in of carrier recovery PLL.

8. 发明专利

JPS6223252A CLOCK RECOVERY DEVICE 失效
公开(公告)号：JPS6223252A
公开(公告)日：1987-01-31
申请号：JP16255185
申请日：1985-07-23
申请人： TOSHIBA CORP , TOSHIBA AUDIO VIDEO ENG
发明人： IKEGAMI KIYOSHI
IPC分类号： H04L7/10
摘要： PURPOSE:To obtain a stable recovery clock at an earlier period regardless of the C/N by allowing a switch to select the 1st gate signal until a digital signal of a frame period is detected and to select the 2nd gate signal after the digital signal of frame period is detected. CONSTITUTION:Until a digital synchronizing signal of frame period is detected by a frame synchronizing detection section 24, a line synchronizing detection section 23 forms a gate signal (LGS) to extract the clock component is formed by a line synchronization detection section 23, it is applied to a clock recovery section 21 as a clock gate signal via a switch 25. After the digital signal of frame period is detected, a gate signal (FGS) formed by the frame synchronizing section 24 is fed to a clock recovery section 21 via the switch 25. Thus, the locking of clock recovery operation is quickened and the stable operation of the clock recovery operation is obtained after the detection of the frame period signal.

9. 发明专利

JPH04273688A SIGNAL SCRAMBLE SYSTEM 失效
公开(公告)号：JPH04273688A
公开(公告)日：1992-09-29
申请号：JP3456491
申请日：1991-02-28
申请人： TOSHIBA CORP , TOSHIBA AVE KK
发明人： IKEGAMI KIYOSHI
IPC分类号： H04K1/04 , G06F21/10 , H04L9/34 , H04N7/16 , H04N7/167 , H04N7/169
摘要： PURPOSE:To make the memory small in its capacity by giving an optional load value to an address counter and randomizing load values so as to rearrange the data in the signal scramble circuit in which the memory is controlled so as to decode the original data. CONSTITUTION:An input terminal 101 receiving a data to be sent is connected to memories 103,105 with a data capacity by one horizontal period via a switch 102. The memories 103,105 are selected for each horizontal period, to which a write address or a read address is given. While the memory 103 is for a write period, an address from an address converter 107 is given to the memory 103 and when the memory 103 is for a read period, an address from a horizontal counter 109 is given to the memory 103. Moreover, an address is given similarly even to the memory 105 and a data read from the memory is selected alternately for each horizontal period and the selected data is inputted to an input terminal 113 for a decoder side as a scrambled data.

10. 发明专利

JPH02278968A WAVEFORM EQUALIZING EQUIPMENT 失效
公开(公告)号：JPH02278968A
公开(公告)日：1990-11-15
申请号：JP9939489
申请日：1989-04-19
申请人： TOSHIBA CORP , TOSHIBA AUDIO VIDEO ENG
发明人： NAKAMURA KAZUHIRO , IKEGAMI KIYOSHI
IPC分类号： H04N5/21
摘要： PURPOSE:To prevent a pattern with much waveform distortion from being displayed by switching the gain of a tap coefficient when the gain of a simulated waveform distortion component is switched. CONSTITUTION:A tap coefficient attenuation means 33 is provided in addition to an attenuation means 31 for simulated waveform distortion component and the gain of the two attenuation means 31, 33 is controlled in different directions nearly simultaneously so that the level of the simulated waveform distortion component does not exceed the dynamic range of a transversal filter(TF) 14 based on the result of prediction as to whether or not the level of the simulated waveform distortion component outputted from the TF 14 exceeds the dynamic range of the TF 14. Thus, the tap coefficient is forcibly switched to a value with the attenuation means 33 in matching the gain after the switching till the tap coefficient is revised to the value in matching with the gain after the switching after the gain of the attenuation means 31 of the simulated waveform distortion component is switched. Thus, the pattern with less waveform distortion is displayed.

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