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41. 发明授权

US5059872A Digital convergence correction device 失效
标题翻译：数字会聚校正装置
公开(公告)号：US5059872A
公开(公告)日：1991-10-22
申请号：US670177
申请日：1991-03-15
申请人： Kuninori Matsumi , Tadahiro Kawagishi , Masahiro Kame , Makoto Shiomi , Kousuke Ozeki , Michitaka Ohsawa
发明人： Kuninori Matsumi , Tadahiro Kawagishi , Masahiro Kame , Makoto Shiomi , Kousuke Ozeki , Michitaka Ohsawa
IPC分类号： H04N9/28
CPC分类号： H04N9/28
摘要： The digital convergence correction device is used for a projection-type television receiver having a Braun tube with an aspherical surface fluorescent screen and a projection lens system with an aspherical surface plastic lens attached to the display screen of th Braun tube. In the digital convergence correction device, a digital memory stores digital correction data corresponding to correction values at the convergence adjustment points on the display screen that is divided in the horizontal and vertical directions. A multiplexer reads the digital correction data out of the digital memory, and implements the time division multiplexing for the data. A D/A converter receives the multiplexed data from the multiplexer, and converts it into an analog signal. The device is provided with sample-holding circuits for making coincident timing for the outputs of the time division multiplexing process, so that no phase shift arises at the time division process and multi-channel time division process is made possible. Among numbers of time divisions, an optimal one can be chosen to meet the system requirement. Consequently, the number of D/A converters is reduced thereby to down-cost the digital convergence correction device. The convergence correction device operates in accordance with the correction signals held in the respective sample-holding circuits.
摘要翻译：数字会聚校正装置用于具有带有非球面荧光屏的布朗管和投影透镜系统的投影型电视接收机，该系统具有安装在布劳恩管显示屏上的非球面塑料透镜。在数字会聚校正装置中，数字存储器将对应于在水平和垂直方向上划分的显示屏上的会聚调整点处的校正值对应的数字校正数据。多路复用器从数字存储器读出数字校正数据，并对数据进行时分复用。 D / A转换器从多路复用器接收多路复用数据，并将其转换为模拟信号。该装置具有用于对时分复用处理的输出进行重合定时的采样保持电路，使得在时分处理和多通道时分处理都不会产生相移。在时间分割的数量中，可以选择最佳的一个来满足系统要求。因此，D / A转换器的数量减少，从而降低数字会聚校正装置的成本。会聚校正装置根据保持在各个采样保持电路中的校正信号进行工作。

42. 发明授权

US5021719A Display 失效
标题翻译：显示
公开(公告)号：US5021719A
公开(公告)日：1991-06-04
申请号：US448980
申请日：1989-12-12
申请人： Ikuya Arai , Kouji Kitou , Michitaka Ohsawa
发明人： Ikuya Arai , Kouji Kitou , Michitaka Ohsawa
IPC分类号： G09G1/04 , G09G1/16 , G09G3/36 , G09G5/00 , G09G5/12 , G09G5/18 , H04N3/22 , H04N3/223 , H04N3/227 , H04N3/23 , H04N3/27
CPC分类号： H04N3/27 , H04N3/22
摘要： Disclosed is a display apparatus in which peculiar synchronizing signals fed while being accompanied by a video signal to be displayed are recognized, control signals for instructing picture scene size (display size) and picture display position optimum to the recognized synchronizing signals are generated by a digital automatic tracking circuit or the like, and horizontal and vertical deflection circuits are operated by the thus generated control signals so that a picture scene having optimum picture scene size and optimum display position is displayed on a display screen. The display apparatus is provided with: a synchronizing signal processing circuit for processing peculiar synchronizing signals fed thereto while being accompanied by the video signal so as to produce a horizontal synchronizing signal repeatedly occurring with a horizontal period and a vertical synchronizing signal repeatedly occurring with a vertical period; a memory for storing control information in advance; and a control processing circuit for recognizing a horizontal scanning frequency and a vertical scanning frequency on the basis of the horizontal synchronizing signal and the vertical synchronizing signal, and for reading out the control information from the memory on the basis of the result of recognition so as to produce and feed control signals for instructing picture display size and picture display position on the display screen to the horizontal deflection circuit and vertical deflection circuit.
摘要翻译：公开了一种显示装置，其中识别出伴随有要显示的视频信号的特殊同步信号，用于指示图像场景尺寸（显示尺寸）的控制信号和对所识别的同步信号最佳的图像显示位置通过数字自动跟踪电路等，并且通过如此产生的控制信号来操作水平和垂直偏转电路，使得在显示屏幕上显示具有最佳图像场景尺寸和最佳显示位置的图像场景。该显示装置具有：同步信号处理电路，用于处理馈送到其中的特殊同步信号，伴随着视频信号，以产生水平周期重复出现的水平同步信号和垂直同步信号。期; 预先存储控制信息的存储器; 以及控制处理电路，用于基于水平同步信号和垂直同步信号来识别水平扫描频率和垂直扫描频率，并且基于识别结果从存储器读出控制信息，以便以产生和馈送用于指示显示屏上的图像显示尺寸和图像显示位置的控制信号到水平偏转电路和垂直偏转电路。

43. 发明授权

US5019754A Horizontal deflection circuit 失效
标题翻译：水平偏转电路
公开(公告)号：US5019754A
公开(公告)日：1991-05-28
申请号：US413456
申请日：1989-09-27
申请人： Makoto Onozawa , Michitaka Ohsawa , Katsuhiko Tonami
发明人： Makoto Onozawa , Michitaka Ohsawa , Katsuhiko Tonami
IPC分类号： H04N3/16 , G09G1/04 , G09G1/16 , H03K4/62
CPC分类号： G09G1/04 , H03K4/62
摘要： A horizontal deflection circuit comprising a horizontal output transistor, and a drive circuit is connected between the base and the emitter of the horizontal output transistor to supply a base drive voltage to the horizontal output transistor in order to control the conduction between the collector and the emitter of the horizonal output transistor, wherein first and second switching means are provided in parallel between the base of the horizontal output transistor and the drive circuit (or between the emitter of the horizontal output transistor and the drive circuit), the first switching means permitting only the current to flow from the base of the horizontal output transistor to the drive circuit (or from the drive circuit to the emitter of the horizontal outut transistor) and the second switching means being conductive only during the conductive period of the horizontal output transistor.
摘要翻译：水平偏转电路包括水平输出晶体管，驱动电路连接在水平输出晶体管的基极和发射极之间，以将基极驱动电压提供给水平输出晶体管，以便控制集电极和发射极之间的导通的水平输出晶体管，其中第一和第二开关装置并联设置在水平输出晶体管的基极与驱动电路之间（或水平输出晶体管的发射极与驱动电路之间），第一开关装置仅允许从水平输出晶体管的基极流到驱动电路（或从驱动电路到水平输出晶体管的发射极）和第二开关装置的电流仅在水平输出晶体管的导通周期期间导通。

44. 发明授权

US5012332A Correcting data reading device in a digital convergence correcting device 失效
标题翻译：在数字会聚校正装置中校正数据读取装置
公开(公告)号：US5012332A
公开(公告)日：1991-04-30
申请号：US301954
申请日：1989-01-26
申请人： Makoto Shiomi , Kosuke Ozeki , Michitaka Ohsawa , Kuninori Matsumi , Tadahiro Kawagishi
发明人： Makoto Shiomi , Kosuke Ozeki , Michitaka Ohsawa , Kuninori Matsumi , Tadahiro Kawagishi
IPC分类号： G09G1/04 , G09G1/00 , G09G1/16 , G09G1/28 , H04N9/28
CPC分类号： H04N9/28
摘要： A digital convergence correcting device effecting convergence correction by using convergence correcting data stored in a memory which includes an address fixing device which, in the case where convergence correcting data are insufficient, reads out in succession the correcting data corresponding to the last horizontal scanning line for the portion lacking in the data so that the correcting data are used repeatedly, and which, in the case where convergence correcting data are excessive, only necessary convergence correcting data are used.
摘要翻译：一种数字会聚校正装置，其通过使用存储在存储器中的会聚校正数据进行会聚校正，所述存储器包括：地址固定装置，在会聚校正数据不足的情况下，连续读出与最后的水平扫描线对应的校正数据，缺少数据的部分使得重复使用校正数据，并且在会聚校正数据过大的情况下，仅使用必要的会聚校正数据。

45. 发明授权

US4977446A Digital convergence correcting apparatus 失效
标题翻译：数字会聚校正装置
公开(公告)号：US4977446A
公开(公告)日：1990-12-11
申请号：US302353
申请日：1989-01-27
申请人： Makoto Shiomi , Michitaka Ohsawa , Toshiyuki Sakamoto , Kuninori Matsumi , Kosuke Ozeki , Ikuo Yuki , Kenji Sato
发明人： Makoto Shiomi , Michitaka Ohsawa , Toshiyuki Sakamoto , Kuninori Matsumi , Kosuke Ozeki , Ikuo Yuki , Kenji Sato
IPC分类号： H04N3/23 , H04N9/28 , H04N9/31
CPC分类号： H04N9/28
摘要： A convergence correcting apparatus is used in a projection television receiver including a CRT having an aspherical fluorescent screen and a projection lens apparatus which is attached to the display screen of the CRT and has aspherical plastic lenses. In the digital convergence correcting apparatus, a digital memory stores digital correction data corresponding to correction values of convergence adjustments points indicative of a plurality of points on the display screens divided in the horizontal and vertical directions. A multiplexer reads out predetermined digital correction data from the digital memory and time sharingly multiplexes. At least one digital/analog converter receives the time sharingly multiplexed data from the multiplexer and generates an analog signal. Sample and hold circuits extract a predetermined correction signal from the analog output of the digital/analog converter and sample and hold them. The convergence correcting apparatus is driven in accordance with the respective correction signals held by the sample and hold circuits.

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