Wireless transmitter, wireless receiver, wireless communication system, and wireless signal control method
    21.
    发明授权
    Wireless transmitter, wireless receiver, wireless communication system, and wireless signal control method 有权
    无线发射机,无线接收机,无线通信系统和无线信号控制方法

    公开(公告)号:US07941170B2

    公开(公告)日:2011-05-10

    申请号:US11828862

    申请日:2007-07-26

    IPC分类号: H04B7/00 H04W72/00

    CPC分类号: H04L5/023 H04W4/08

    摘要: A wireless transmitter comprises ID signal storage module for storing an ID signal that identifies a group to which a data signal to be transmitted belongs and provides, for each group, second or higher-order statistic properties unique to each group; modulator for modulating the data signal; wireless signal ID assignment module for associating the modulated signal thus modulated with the stored ID signal and for generating a signal to be transmitted, by assigning second or higher-order statistic properties that correspond with the ID signal to the modulated signal that is associated with the ID signal; and wireless signal transmission module for wirelessly transmitting the signal thus generated.

    摘要翻译: 无线发射机包括ID信号存储模块,用于存储标识要发射的数据信号所属的组的ID信号,并为每个组提供每个组唯一的第二或更高阶统计特性; 用于调制数据信号的调制器; 无线信号ID分配模块,用于将由此调制的调制信号与存储的ID信号相关联,并通过将与ID信号相对应的第二或更高阶统计特性分配给与该信号相关联的调制信号,来产生要发送的信号 ID信号; 以及用于无线发送由此产生的信号的无线信号传输模块。

    RADIO COMMUNICATION APPARATUS, RADIO COMMUNICATION SYSTEM, AND RADIO COMMUNICATION METHOD
    22.
    发明申请
    RADIO COMMUNICATION APPARATUS, RADIO COMMUNICATION SYSTEM, AND RADIO COMMUNICATION METHOD 有权
    无线电通信设备,无线电通信系统和无线电通信方法

    公开(公告)号:US20100248761A1

    公开(公告)日:2010-09-30

    申请号:US12728786

    申请日:2010-03-22

    申请人: Koji Maeda

    发明人: Koji Maeda

    IPC分类号: H04B7/00 H04B1/04

    CPC分类号: H04B17/309 H04B17/24

    摘要: A radio communication apparatus includes a characteristic data extraction unit receiving a radio signal from one or more radio stations and calculating characteristic data representing a waveform characteristic indicating statistical properties of the received signal; a characteristic data determination unit determining at least one characteristic data based on one or more calculated characteristic data; a signal generation unit converting a signal for a radio transmission into a signal having a format corresponding to the determined characteristic data, and generating a transmission signal having a characteristic waveform based on the characteristic data; and a transmission unit transmitting the transmission signal.

    摘要翻译: 无线电通信装置包括:特征数据提取单元,接收来自一个或多个无线电台的无线电信号,并计算表示表示接收信号的统计特性的波形特征的特征数据; 特征数据确定单元,基于一个或多个计算的特征数据来确定至少一个特征数据; 信号生成单元,将无线传输用信号转换成具有与所确定的特性数据对应的格式的信号,根据特性数据生成具有特征波形的发送信号; 以及发送单元,发送所述发送信号。

    Method and system for calibrating frequencies-amplitude and phase mismatch in a receiver
    23.
    发明授权
    Method and system for calibrating frequencies-amplitude and phase mismatch in a receiver 失效
    用于校准频率的方法和系统 - 接收机中的幅度和相位失配

    公开(公告)号:US07783273B2

    公开(公告)日:2010-08-24

    申请号:US11543928

    申请日:2006-10-06

    IPC分类号: H04B1/10 H04B7/00

    CPC分类号: H04B1/30 H03D3/009

    摘要: The receiver, which enables rejection of image signals with higher accuracy over wider frequency band, can be provided as a low IF receiver by inputting a calibration signal of frequency fi (1≦i≦N) before reception of signals and determining the frequency response fa(z) to fd(z) of a calibrating filter in a filter mismatch calibrating circuit (FIL_CAL) 195 to make zero amplitude and phase mismatches between the I component and Q component of the quadrature demodulation signal at the frequency fIFi.

    摘要翻译: 可以通过在接收信号之前输入频率fi(1≦̸ i≦̸ N)的校准信号,并且确定频率响应fa,可以在较宽的频带上抑制具有更高精度的图像信号的接收机作为低IF接收机 (FIL_CAL)195中的校准滤波器的(z)至fd(z),以在fIFi频率处的正交解调信号的I分量和Q分量之间产生零幅度和相位失配。

    IMAGE FORMING APPARATUS
    24.
    发明申请
    IMAGE FORMING APPARATUS 失效
    图像形成装置

    公开(公告)号:US20080130072A1

    公开(公告)日:2008-06-05

    申请号:US11959509

    申请日:2007-12-19

    申请人: Koji Maeda

    发明人: Koji Maeda

    IPC分类号: H04N1/46

    摘要: A clearing section includes a counter for measuring a period up to the reset of contents set by means of an operation panel to initial values. If a position discriminating section discriminates that the operation panel is at a first position, the clearing section starts measuring the period by means of the counter from the first entry made to the operation panel. When a count value reaches a predetermined value, the clearing section executes an automatic clear processing to reset the contents set by means of the operation panel to the initial values. On the other hand, the clearing section cancels the execution of the automatic clear processing if the position discriminating section discriminates that the operation panel is at a second position.

    摘要翻译: 清除部分包括一个计数器,用于测量通过操作面板设置的内容的复位到初始值的周期。 如果位置识别部分识别操作面板处于第一位置,则清除部分从开始对操作面板的第一条目开始,通过计数器开始测量周期。 当计数值达到预定值时,清除部分执行自动清除处理,以将通过操作面板设置的内容重置为初始值。 另一方面,如果位置识别部鉴别出操作面板处于第二位置,则清除部取消自动清除处理的执行。

    SIGNAL FREQUENCY BAND DETECTION DEVICE
    25.
    发明申请
    SIGNAL FREQUENCY BAND DETECTION DEVICE 失效
    信号频带检测装置

    公开(公告)号:US20080125071A1

    公开(公告)日:2008-05-29

    申请号:US11754607

    申请日:2007-05-29

    IPC分类号: H04B1/26

    CPC分类号: H04B1/38

    摘要: A signal frequency band detection device is disclosed that is able to separately handle plural co-existing signals, and able to separately detect frequency bands used for transmission of these co-existing signals. The signal frequency band detection device includes a signal decomposition unit that decomposes a received signal into plural signal components with frequency bands of the signal components at least partially overlapping each other; and a frequency band detection unit that, based on respective electrical powers of the signal components, detects the respective frequency bands of the signal components.

    摘要翻译: 公开了一种信号频带检测装置,其能够分别处理多个共存信号,并能够分别检测用于传输这些共存信号的频带。 信号频带检测装置包括信号分解单元,其将接收到的信号分解成多个信号分量,信号分量的频带至少部分地彼此重叠; 以及频带检测单元,其基于信号分量的各个电功率来检测信号分量的各个频带。

    Receiver
    26.
    发明申请
    Receiver 失效
    接收器

    公开(公告)号:US20070080835A1

    公开(公告)日:2007-04-12

    申请号:US11543928

    申请日:2006-10-06

    IPC分类号: H03M1/10

    CPC分类号: H04B1/30 H03D3/009

    摘要: The receiver, which enables rejection of image signals with higher accuracy over wider frequency band, can be provided as a low IF receiver by inputting a calibration signal of frequency fi (1≦i≦N) before reception of signals and determining the frequency response fa(z) to fd(z) of a calibrating filter in a filter mismatch calibrating circuit (FIL_CAL) 195 to make zero amplitude and phase mismatches between the I component and Q component of the quadrature demodulation signal at the frequency fIFi.

    摘要翻译: 可以通过输入频率f 1的校准信号(1≤i≤N)来提供能够在较宽频带上以较高精度抑制图像信号的接收机作为低IF接收机, 在接收信号之前确定滤波器失配校准电路(FIL_CAL)195中的校准滤波器的频率响应f(z)至f(d)(z),以使 正交解调信号的I分量和Q分量之间的零幅度和相位失配在频率f IFi

    Signal detector used in wireless communication system

    公开(公告)号:US20060067446A1

    公开(公告)日:2006-03-30

    申请号:US11239199

    申请日:2005-09-30

    IPC分类号: H04B1/10 H04K1/10

    摘要: A signal detector arranged in a receiver of a wireless communication device includes a variable passband bandpass filter configured to bandlimit a received signal using a variable passband; a signal parameter detection unit configured to detect a signal parameter of each of a plurality of signals contained in the received signal; a detection order determination unit configured to determine a detection order for detecting the signals from the received signal based on the signal parameter; a parameter control unit configured to control the passband of the variable passband bandpass filter based on the detection order and the signal parameter; and an equalization and decision unit configured to equalize and decide the bandlimited signal output from the variable passband bandpass filter. The signals contained in the received signal are successively detected from the received signal according to the detection order by means of the variable passband bandpass filter and the equalization and decision unit.

    Slidably retractable portable telephone apparatus
    30.
    发明授权
    Slidably retractable portable telephone apparatus 失效
    可滑动伸缩便携式电话设备

    公开(公告)号:US5450619A

    公开(公告)日:1995-09-12

    申请号:US49530

    申请日:1993-04-20

    申请人: Koji Maeda

    发明人: Koji Maeda

    摘要: In a portable telephone apparatus, the length of a housing thereof and a display area are altered between the operation and storage or non-operation states thereof, thereby improving operability thereof. In the operating state, the first display and the second display are activated to present information. In the non-operation state, only the first display is activated. In the storage state, to minimize the size of the housing, only the indispensable information items such as the remaining battery power and in-service-area designation are presented, thereby facilitating the apparatus to be accommodated in a small space. In the operation state, the housing is elongated such that the distance between the transmitter and the receiver is similar to that between the mouth and the ear of the user to improve the speech quality in the telephone call. Moreover, the display area is increased to possibly present a dial number inputted.

    摘要翻译: 在便携式电话设备中,其外壳的长度和显示区域在其操作和存储或非操作状态之间改变,从而提高其可操作性。 在操作状态下,第一显示和第二显示被激活以呈现信息。 在非操作状态下,只有第一个显示被激活。 在存储状态下,为了最小化壳体的尺寸,仅呈现诸如剩余电池电量和使用区域指定之类的不可缺少的信息项目,从而便于将设备容纳在小空间中。 在操作状态下,壳体被拉长,使得发射机和接收机之间的距离与用户的耳朵和耳朵之间的距离相似,以提高电话呼叫中的语音质量。 此外,显示区域增加到可能呈现输入的拨号号码。