Impulse noise suppression device
    1.
    发明授权
    Impulse noise suppression device 有权
    脉冲噪声抑制装置

    公开(公告)号:US07430255B2

    公开(公告)日:2008-09-30

    申请号:US10491821

    申请日:2002-10-08

    CPC分类号: G10L21/0208 H04L1/004

    摘要: Digital audio data with error detection bits added thereto is inputted to an error detecting and correcting device (4). The correcting device (4) corrects an error when the error is detected in the digital audio data. The digital audio data outputted from the error detecting and correcting device (4) is inputted to an impulse noise suppressing circuit (6). The suppressing circuit (6) operates for a predetermined time period when the correcting device (4) detects an error.

    摘要翻译: 具有添加有错误检测位的数字音频数据被输入到错误检测和校正装置(4)。 当在数字音频数据中检测到错误时,校正装置(4)校正错误。 从错误检测和校正装置(4)输出的数字音频数据被输入到脉冲噪声抑制电路(6)。 当校正装置(4)检测到错误时,抑制电路(6)工作预定时间段。

    Transmitter and receiver
    2.
    发明授权
    Transmitter and receiver 失效
    发射机和接收机

    公开(公告)号:US07551690B2

    公开(公告)日:2009-06-23

    申请号:US10467847

    申请日:2002-02-25

    IPC分类号: H03K9/00

    摘要: A transmitter (1) converts an input signal from a microphone (2) into a plural-bit digital signal by means of an A/D converter (4) at predetermined time intervals. An encoder (6) divides the digital signal into plural blocks and adds a parity bit to each block to thereby form a coded signal. A transmitting unit (8) modulates a carrier with the coded signal and transmits the modulated carrier through an antenna (10). A receiver (12) includes two tuning units (18A, 18B). Corresponding coded signals outputted from the tuning units (18A, 18B) are inputted to a decoder (20). The decoder (20) makes a parity check on respective blocks of the corresponding coded signals and selects and outputs an error-free one of the corresponding blocks of the corresponding coded signals.

    摘要翻译: 发射机(1)以预定的时间间隔通过A / D转换器(4)将来自麦克风(2)的输入信号转换成多位数字信号。 编码器(6)将数字信号分成多个块,并将奇偶校验位加到每个块,从而形成编码信号。 发送单元(8)利用编码信号对载波进行调制,并通过天线(10)发送调制载波。 接收器(12)包括两个调谐单元(18A,18B)。 从调谐单元(18A,18B)输出的对应的编码信号被输入到解码器(20)。 解码器(20)对相应的编码信号的各个块进行奇偶校验,并选择并输出对应的编码信号的相应块中的无差错的一个。