Broadcasting receiver and method of receiving a broadcasting wave
    1.
    发明授权
    Broadcasting receiver and method of receiving a broadcasting wave 失效
    广播接收机和接收广播波的方法

    公开(公告)号:US07672654B2

    公开(公告)日:2010-03-02

    申请号:US11453211

    申请日:2006-06-14

    申请人: Kunio Okada

    发明人: Kunio Okada

    IPC分类号: H04B1/06

    摘要: A receiver has an amplifier for amplifying a TV broadcast signal. A mixer mixes the amplified signal with an oscillation signal corresponding to a channel selection signal and generates a low frequency signal. A bandpass filter generates a signal having an amplitude corresponding to the low frequency signal. Electric field intensity filtering circuits filter the low frequency signal. A subtractor calculates a difference between the output from the filtering circuits and the output from the bandpass filter to generate a difference signal which is negatively fed back signal to the amplifier when an amplitude of the difference signal is larger than a predetermined value. The signal from the filtering circuit is the negative feed back signal when the amplitude of the difference signal is not larger than the predetermined value. An AGC signal corresponding to an electric field intensity of the output from the mixer is inputted to the amplifier.

    摘要翻译: 接收机具有用于放大TV广播信号的放大器。 混频器将放大的信号与对应于信道选择信号的振荡信号进行混频,并产生低频信号。 带通滤波器产生具有对应于低频信号的振幅的信号。 电场强度滤波电路对低频信号进行滤波。 减法器计算滤波电路的输出与带通滤波器的输出之间的差值,以产生当差分信号的幅度大于预定值时向放大器产生负反馈信号的差分信号。 当差分信号的振幅不大于预定值时,来自滤波电路的信号是负反馈信号。 对应于来自混频器的输出的电场强度的AGC信号被输入到放大器。

    Orthogonal frequency division multiplexing (OFDM) receiver, OFDM receiving circuit and OFDM diversity reception method
    2.
    发明授权
    Orthogonal frequency division multiplexing (OFDM) receiver, OFDM receiving circuit and OFDM diversity reception method 失效
    正交频分复用(OFDM)接收机,OFDM接收电路和OFDM分集接收方法

    公开(公告)号:US07424073B2

    公开(公告)日:2008-09-09

    申请号:US10973860

    申请日:2004-10-26

    申请人: Kunio Okada

    发明人: Kunio Okada

    IPC分类号: H04B7/10 H04L1/02 H04L27/00

    摘要: An Orthogonal Frequency Division Multiplexing (OFDM) signal having a symbol defining a transmission unit is produced by dividing data streams into a plurality of carriers within a predetermined bandwidth and prepared with orthogonal modulation. A transform unit having at least two systems transforms the received OFDM signal to a carrier domain signal per symbol unit. A composite circuit segments the carrier units and adaptively composites the signal data which constitutes a plurality of different carriers transformed by a first system transform circuit and the signal data which constitutes a plurality of different carriers transformed by a second system transform circuit for each identical carrier in each system.

    摘要翻译: 通过将数据流划分成预定带宽内的多个载波并通过正交调制来制作具有定义传输单元的符号的正交频分复用(OFDM)信号。 具有至少两个系统的变换单元将接收到的OFDM信号变换为每符号单位的载波域信号。 复合电路对载波单元进行分段,并自适应地组合构成由第一系统变换电路变换的多个不同载波的信号数据和构成由第二系统变换电路为每个相同载波变换的多个不同载波的信号数据 每个系统。

    OFDM signal demodulator circuit and OFDM signal demodulating method
    3.
    发明申请
    OFDM signal demodulator circuit and OFDM signal demodulating method 失效
    OFDM信号解调电路和OFDM信号解调方法

    公开(公告)号:US20060023800A1

    公开(公告)日:2006-02-02

    申请号:US11181239

    申请日:2005-07-14

    申请人: Kunio Okada

    发明人: Kunio Okada

    IPC分类号: H04K1/10 H04J11/00

    CPC分类号: H04L27/2647

    摘要: When an OFDM demodulator circuit performs the waveform equivalence of carrier signals outputted from an FFT processing circuit, the OFDM demodulator circuit extracts correction coefficients corresponding to the gain of a reception signal outputted from a tuner unit from a correction coefficient table, and phase corrections are performed in a phase correction circuit based on the extracted correction coefficients. After that, the OFDM demodulator circuit performs the waveform equivalence processing with a transmission path equivalent circuit. Thereby, even if a C/N value is deteriorated owing to the amplification of an OFDM signal, the influence on the receiving performance of a receiving apparatus can be curbed, and a receiving performance can be improved.

    摘要翻译: 当OFDM解调器电路执行从FFT处理电路输出的载波信号的波形等价时,OFDM解调器电路从校正系数表中提取与从调谐器单元输出的接收信号的增益相对应的校正系数,并执行相位校正 在基于提取的校正系数的相位校正电路中。 之后,OFDM解调器电路利用传输路径等效电路进行波形等价处理。 因此,即使由于OFDM信号的放大而使C / N值劣化,也可以抑制对接收装置的接收性能的影响,可以提高接收性能。

    Image data output apparatus
    4.
    发明授权
    Image data output apparatus 失效
    图像数据输出装置

    公开(公告)号:US5157773A

    公开(公告)日:1992-10-20

    申请号:US683198

    申请日:1991-04-10

    IPC分类号: G06K15/12

    CPC分类号: G06K15/128 G06K15/12

    摘要: An image data output apparatus is connected to an image scanner and a data processor (host computer). The image data output apparatus includes interfaces, a data converter, a video signal generator, an LBP engine unit, and the like. Multi-level image data scanned by the image scanner is converted by the data converter into data having a desired data format corresponding to the data processor. The converted data is output to the data processor through the corresponding interface. Meanwhile, the scanned image data is also supplied to the video signal generator and is converted to a drive signal for driving a semiconductor laser of the LBP engine unit.

    摘要翻译: 图像数据输出装置连接到图像扫描器和数据处理器(主计算机)。 图像数据输出装置包括接口,数据转换器,视频信号发生器,LBP引擎单元等。 由图像扫描仪扫描的多级图像数据由数据转换器转换成具有与数据处理器对应的期望数据格式的数据。 转换的数据通过相应的接口输出到数据处理器。 同时,扫描图像数据也被提供给视频信号发生器,并被转换为用于驱动LBP引擎单元的半导体激光器的驱动信号。

    Orthogonal frequency division multiplexing (OFDM) demodulator, integrated circuit for OFDM demodulation and OFDM demodulation method
    5.
    发明授权
    Orthogonal frequency division multiplexing (OFDM) demodulator, integrated circuit for OFDM demodulation and OFDM demodulation method 失效
    正交频分复用(OFDM)解调器,用于OFDM解调和OFDM解调方法的集成电路

    公开(公告)号:US07580484B2

    公开(公告)日:2009-08-25

    申请号:US10973859

    申请日:2004-10-26

    申请人: Kunio Okada

    发明人: Kunio Okada

    IPC分类号: H04L27/06

    摘要: An Orthogonal Frequency Division Multiplexing (OFDM) demodulator, an integrated circuit for OFDM demodulation and an OFDM demodulation method in which at least one of a predictive value generated by a low order symbol filter and a predictive value generated by a high order symbol filter interpolates the order of a high symbol direction, or a weighted composite value of the predictive values, is selected to accomplish waveform equivalence of a carrier outputted from a transform section.

    摘要翻译: 正交频分复用(OFDM)解调器,用于OFDM解调的集成电路和OFDM解调方法,其中由低阶符号滤波器生成的预测值和由高阶符号滤波器生成的预测值中的至少一个插值 选择高符号方向的顺序或预测值的加权合成值,以实现从变换部输出的载波的波形等效。

    Receiving apparatus and receiving circuit
    6.
    发明授权
    Receiving apparatus and receiving circuit 失效
    接收装置和接收电路

    公开(公告)号:US07546104B2

    公开(公告)日:2009-06-09

    申请号:US11293474

    申请日:2005-12-01

    IPC分类号: H04B1/06

    摘要: The invention arranges an auxiliary antenna in the neighborhood of an antenna, and a voltage applied to the auxiliary antenna is changed based on the reception quality of a received signal received by the antenna. Thereby, the reception characteristic of the antenna is changed. Moreover, the optimum antenna is selected among a plurality of arranged antennas based on the reception quality of the received signals received by the plurality of arranged antennas.

    摘要翻译: 本发明在天线附近布置辅助天线,并且基于由天线接收的接收信号的接收质量来改变施加到辅助天线的电压。 由此,改变天线的接收特性。 此外,基于由多个配置的天线接收的接收信号的接收质量,在多个排列的天线中选择最佳天线。

    Position detecting apparatus and method of detecting a position
    7.
    发明申请
    Position detecting apparatus and method of detecting a position 失效
    位置检测装置和位置检测方法

    公开(公告)号:US20070219719A1

    公开(公告)日:2007-09-20

    申请号:US11803321

    申请日:2007-05-14

    IPC分类号: G01C21/00

    CPC分类号: G01S19/24 G01S19/34

    摘要: CPU instructs RF controlling section to switch RF section from an inoperative mode to an operation mode and from the operation mode to the inoperative mode. When all of five pieces of sub-frame data have not been acquired, RF section is switched intermittently from the inoperative mode to the operation mode in synchronization with transmission of lacking sub-frame data, thereby acquiring such lacking sub-frame data. When all the five pieces of sub-frame data have been acquired, the current position is calculated using positional information contained in the sub-frame data. A part of five pieces of sub-frame data including the first to fifth sub-frame data transmitted from a satellite in a time series manner is acquired from GPS signal received in the operation mode, and the remaining part of the five pieces of sub-frame data is acquired in operation mode set at other timing, and then the positional information is judged based on the five pieces of sub-frame data acquired in the above manner.

    摘要翻译: CPU指示RF控制部分将RF部分从不工作模式切换到操作模式,并从操作模式切换到不工作模式。 当没有获取五个子帧数据的全部时,与缺少子帧数据的传输同步地,将RF部分从不工作模式间歇地切换到操作模式,从而获取这种缺少的子帧数据。 当已经获取了所有五条子帧数据时,使用包含在子帧数据中的位置信息来计算当前位置。 从操作模式中接收的GPS信号中获取包括以时间序列方式从卫星发送的第一至第五子帧数据的五个子帧数据的一部分,并且五个子帧的剩余部分 在其他定时设定的操作模式中获取帧数据,然后基于以上述方式获取的5条子帧数据来判断位置信息。

    Image information processing apparatus using single phase-locked loop
    9.
    发明授权
    Image information processing apparatus using single phase-locked loop 失效
    图像信息处理装置采用单锁相环

    公开(公告)号:US5978038A

    公开(公告)日:1999-11-02

    申请号:US895457

    申请日:1997-07-16

    CPC分类号: H04N9/45 H04N5/04

    摘要: An image information processing apparatus is described that suppresses noise generated in digital signal processing while preventing the circuit scale from enlarging. The apparatus includes a separator, a first detector, a second detector, a phase-locked loop, an A/D converter, a phase difference detector, a chrominance data processor and a luminance data processor. The phase difference detector detects a phase difference between the reference clock signal and the scan sync signal. The luminance data processor combines the luminance data in Units of two pieces to produce compensated luminance data in accordance with the phase difference.

    摘要翻译: 描述了一种图像信息处理装置,其抑制数字信号处理中产生的噪声,同时防止电路规模的扩大。 该装置包括分离器,第一检测器,第二检测器,锁相环,A / D转换器,相位差检测器,色度数据处理器和亮度数据处理器。 相位差检测器检测参考时钟信号和扫描同步信号之间的相位差。 亮度数据处理器将亮度数据以两个单位进行组合,以根据相位差产生补偿亮度数据。

    Method and apparatus for printing data in accordance with a previously
set parameter regardless of currently specified parameters
    10.
    发明授权
    Method and apparatus for printing data in accordance with a previously set parameter regardless of currently specified parameters 失效
    无论当前指定的参数如何,根据先前设置的参数打印数据的方法和装置

    公开(公告)号:US5822499A

    公开(公告)日:1998-10-13

    申请号:US702804

    申请日:1996-08-26

    IPC分类号: G06K15/00 G06K15/02 G06F13/00

    摘要: An output method and apparatus is provided for storing first control information for controlling an output operation based on externally supplied data and for storing command information for commanding modification of the first control information to second control information that is different from the first control information, and for modifying the first control information to the second control information to control the output operation based on the second control information in accordance with the stored command information, wherein the output operation can be executed based on the first control information.

    摘要翻译: 提供了一种输出方法和装置,用于存储用于基于外部提供的数据控制输出操作的第一控制信息,并且用于将用于命令将第一控制信息修改的命令信息存储到与第一控制信息不同的第二控制信息,并且 将第一控制信息修改为第二控制信息,以根据存储的命令信息基于第二控制信息来控制输出操作,其中可以基于第一控制信息执行输出操作。