Image signal coding apparatus
    2.
    发明授权
    Image signal coding apparatus 失效
    图像信号编码装置

    公开(公告)号:US4799110A

    公开(公告)日:1989-01-17

    申请号:US888493

    申请日:1986-07-23

    IPC分类号: G06T9/00 H04N1/417 H04N1/40

    CPC分类号: H04N1/4175 G06T9/005

    摘要: An image signal coding apparatus includes reference and coding line change point detection circuits, reference line shift registers, a coding line shift register, a symbol detection circuit, coding and reference line ROM tables, and a code determination circuit. The coding line change point detection circuit receives a serial reference line image signal in synchronism with a serial coding line image signal. The reference line shift registers receive serial change point data in the reference line image signal and output parallel reference line change point data. The coding line shift register receives serial change point data in the coding line image signal and outputs parallel coding line change point data. The symbol detection circuit monitors output states of the reference and coding line shift registers. A run length counter counts the number of pixels between the change points in the coding line image signal. The ROM tables cooperate with the code determination circuit to code the coding line image signal in response to outputs from the symbol detection circuit and the run length counter.

    摘要翻译: 图像信号编码装置包括参考编码线切换点检测电路,参考线移位寄存器,编码线移位寄存器,符号检测电路,编码和参考线ROM表以及代码确定电路。 编码线变换点检测电路与串行编码线图像信号同步地接收串行参考线图像信号。 参考线移位寄存器在参考线图像信号中接收串行变化点数据,并输出并行参考线变化点数据。 编码行移位寄存器在编码行图像信号中接收串行变换点数据,并输出并行编码行变更点数据。 符号检测电路监视参考和编码行移位寄存器的输出状态。 运行长度计数器对编码行图像信号中的变化点之间的像素数进行计数。 ROM表与代码确定电路协调,以响应于符号检测电路和游程长度计数器的输出对编码行图像信号进行编码。

    Image data processing apparatus capable of high-speed data encoding
and/or decoding
    3.
    发明授权
    Image data processing apparatus capable of high-speed data encoding and/or decoding 失效
    能够进行高速数据编码和/或解码的图像数据处理装置

    公开(公告)号:US4887224A

    公开(公告)日:1989-12-12

    申请号:US88271

    申请日:1987-08-24

    摘要: An image data processing apparatus capable of high-speed encoding even for intermittently supplied image data is provided with a memory storing image data, an encoder for encoding the image data and/or a decoder for decoding such encoded information and a transfer unit for DMA transfer of the image data from the memory to the encoder. A supply may be provided for supplying the encoder with the reference signals in synchronization with the DMA transfer of the image data by the transfer unit. The encoding and/or decoding are performed intermittently, e.g., in response to supply of the reference signals.

    摘要翻译: 即使对于间歇提供的图像数据也能够进行高速编码的图像数据处理装置,设置有存储图像数据的存储器,用于对该图像数据进行编码的编码器和/或用于对该编码信息进行解码的解码器和用于DMA传送的传送单元 从存储器到编码器的图像数据。 可以提供电源,以通过传送单元与图像数据的DMA传送同步地向编码器提供参考信号。 间歇地执行编码和/或解码,例如响应于参考信号的提供。

    Transaction processing system utilizing teletext broadcasting system and
terminal used in the transaction processing systems
    4.
    发明授权
    Transaction processing system utilizing teletext broadcasting system and terminal used in the transaction processing systems 失效
    交易处理系统利用图文电视广播系统和终端在交易处理系统中使用

    公开(公告)号:US6091823A

    公开(公告)日:2000-07-18

    申请号:US797209

    申请日:1997-02-11

    摘要: A transaction processing system includes a broadcasting station broadcasting a television signal and a teletext signal, the teletext signal including service information concerning transactions, a home-use terminal, a television set connected to the home-use terminal, a transaction processing center, and a communications network connecting the home-use terminal and the transaction processing center to each other. The home-use terminal includes a first unit for receiving the television signal and the teletext signal and for displaying an image of the television signal and an image of the teletext signal on the television set, and a second unit for generating a request for a desired transaction that is one of the transactions contained in the teletext signal broadcasted by the broadcasting station and including information concerning the desired transaction, and a third unit for communicating with the transaction processing center via the communications network, the request for the desired transaction being sent to the transaction processing center via the communications network. The transaction processing center includes a fourth unit for checking the request for the desired transaction in order to determine whether or not the request for the desired transaction is acceptable.

    摘要翻译: 交易处理系统包括广播电视信号和图文电视信号的广播台,包括有关交易的服务信息的图文电视信号,家庭用终端,连接到家庭用终端的电视机,交易处理中心和 将家用终端和交易处理中心相互连接的通信网络。 家用终端包括:第一单元,用于接收电视信号和图文电视信号,并用于在电视机上显示电视信号的图像和图文电视信号的图像;以及第二单元,用于产生期望的 交易是包含在由广播电台广播的图文电视信号中的交易之一,并且包括关于期望交易的信息;以及第三单元,用于经由通信网络与交易处理中心通信,期望交易的请求被发送到 交易处理中心通过通信网络。 事务处理中心包括第四单元,用于检查对所需事务的请求,以便确定对所需事务的请求是否可接受。