Method and apparatus for receiving a signal
    11.
    发明授权
    Method and apparatus for receiving a signal 失效
    用于接收信号的方法和装置

    公开(公告)号:US06597748B1

    公开(公告)日:2003-07-22

    申请号:US09980302

    申请日:2001-11-28

    CPC classification number: H04B1/30

    Abstract: Apparatus 20, 30, 50, 60 for receiving a carrier signal modulated by a wanted signal, the modulated carrier signal occupying one of a plurality of channels whose central frequencies are separated from one another by a fixed frequency referred to as the channel spacing, the apparatus including a local oscillator 28 for generating first and second signals at a frequency which is not an integral multiple of half the channel spacing whereby when the received carrier signal is mixed with the first and second signals, a complex, digital Very Low Intermediate Frequency (VLIF) signal is generated in which the wanted signal is centred about a VLIF which is slightly larger than half the channel spacing.

    Abstract translation: 用于接收由有用信号调制的载波信号的装置20,30,50,60,调制载波信号占据多个信道中的一个,其中心频率被称为信道间隔的固定频率, 该设备包括本地振荡器28,用于以不是信道间隔的一半的整数倍的频率产生第一和第二信号,由此当接收的载波信号与第一和第二信号混合时,复数数字非常低的中频 VLIF)信号,其中有用信号以略大于信道间隔的一半的VLIF为中心。

    Diversity channel data receiver with automatic alignment over a
.+-.3.5-bit range
    12.
    发明授权
    Diversity channel data receiver with automatic alignment over a .+-.3.5-bit range 失效
    分频通道数据接收器,在+/- 3.5位范围内自动对准

    公开(公告)号:US4744095A

    公开(公告)日:1988-05-10

    申请号:US895528

    申请日:1986-08-11

    CPC classification number: H04L1/02

    Abstract: An arrangement ensuring the change-over of two channels through which the same digital information is conveyed with automatic data alignment over a .+-.3.5 bit range comprises for each channel an array of buffer stores operating at a write rate H.sub.i /N.sub.i (where i=1, 2), an oscillator operating at a rate H which provides reading of the buffer stores at the rate H/N and being synchronized in phase-opposition with one or the other of the write rates, and a logic comparator controlling the write rates H.sub.i /N.sub.i, the routing of the write rates to the input of the oscillator, as well as a change-over switch for the data.In the buffer store of the channel assumed to be the one whose quality degrades, the data are converted into N parallel streams at the rate H.sub.2 /N and are read at the rate H/N of the oscillator. In the other channel, the write rate of the buffer store is forced to the rate H.sub.1 /N-1, the read rate remaining unchanged, until there is a coincidence of N bits in the two channels; thereupon the data stream is switched, the write rate is locked at H.sub.1 /N and this write rate is applied to the oscillator.

    Abstract translation: 确保在+/- 3.5位范围内自动数据对齐传送相同数字信息的两个通道的切换的布置包括:对于每个通道,以写入速率Hi / Ni(其中i = 1,2),以以速率H / N提供对缓冲器的读取的速率H操作的振荡器,并且与写入速率中的一个或另一个以相位对准的方式同步;以及控制写入的逻辑比较器 速率Hi / Ni,写入速率到振荡器的输入的路由,以及数据的切换开关。 在假定为质量劣化的信道的缓冲存储器中,将数据以速率H2 / N转换成N个并行流,并以振荡器的速率H / N读取。 在另一个通道中,缓冲存储器的写入速率被强制为速率H1 / N-1,读取速率保持不变,直到两个通道中存在N位一致; 随后数据流被切换,写入速率被锁定在H1 / N,并且该写入速率被施加到振荡器。

    Dispenser for expelling contents of collapsible tubes and method of using
    13.
    发明授权
    Dispenser for expelling contents of collapsible tubes and method of using 失效
    用于排出可折叠管内容物的分配器和使用方法

    公开(公告)号:US3933273A

    公开(公告)日:1976-01-20

    申请号:US442186

    申请日:1974-02-13

    CPC classification number: B05C17/00583 B05C17/01 B65D83/0005

    Abstract: The contents of a collapsible tube are expelled by placing the tube in a close-fitting sleeve having a removable cap with an orifice fitting over the discharge nozzle of the tube and a plunger which engages the other end of the tube and has a diametral groove to receive the crimped closed end of the tube. Movement of the plunger towards the cap causes the wall of the tube to concertina.

    Abstract translation: 可折叠管的内容物通过将管放置在具有可拆卸盖的紧密套筒中而排出,该可拆卸盖具有配合在管的排出喷嘴上的孔口,以及与管的另一端接合的柱塞,并且具有径向槽 接收管的压接封闭端。 柱塞朝向帽的运动导致管的壁伸展。

    Electronic bracelet
    14.
    发明授权
    Electronic bracelet 有权
    电子手链

    公开(公告)号:US09288836B1

    公开(公告)日:2016-03-15

    申请号:US13421041

    申请日:2012-03-15

    CPC classification number: H04W84/18

    Abstract: A bracelet including a plurality of circuits. The plurality of circuits includes a wireless communication circuit configured to communicate with a first device, a near-field communication circuit configured to communicate with a second device via a near-field communication antenna, and a power supply circuit including a battery. The first device is remote from the bracelet. The power supply circuit is configured to supply power to one or more of the plurality of circuits.

    Abstract translation: 包括多个电路的手镯。 多个电路包括被配置为与第一设备进行通信的无线通信电路,经配置以经由近场通信天线与第二设备通信的近场通信电路以及包括电池的电源电路。 第一个设备远离手镯。 电源电路被配置为向多个电路中的一个或多个电路供电。

    Adaptive FM/AM radio architecture
    19.
    发明授权
    Adaptive FM/AM radio architecture 有权
    自适应FM / AM无线电架构

    公开(公告)号:US08160529B1

    公开(公告)日:2012-04-17

    申请号:US11640088

    申请日:2006-12-15

    CPC classification number: H04B1/30 H03D5/00 H03D7/166

    Abstract: A radio frequency (RF) receiver includes a local oscillator (LO) module that receives a control signal and that generates a LO signal at a LO frequency that is based on the control signal, a LO mixer module that generates an intermediate frequency (IF) signal based on a radio frequency (RF) signal and the LO signals, a complex intermediate frequency (IF) mixer module that generates a baseband signal based on the IF signal and an IF oscillator signal, and a channel monitoring module that generates the control signal based on the baseband signal.

    Abstract translation: 射频(RF)接收机包括接收控制信号并基于控制信号产生LO频率的LO信号的本地振荡器(LO)模块,产生中频(IF)的LO混频器模块, 基于射频(RF)信号和LO信号的信号,基于IF信号和IF振荡器信号生成基带信号的复合中频混频器模块,以及产生控制信号的信道监测模块 基于基带信号。

    Method and apparatus for mixing a signal
    20.
    发明授权
    Method and apparatus for mixing a signal 有权
    用于混合信号的方法和装置

    公开(公告)号:US08036625B1

    公开(公告)日:2011-10-11

    申请号:US11774979

    申请日:2007-07-09

    Inventor: Patrick Clement

    CPC classification number: H03D7/00 H03D2200/0072 H04B1/28

    Abstract: In a method for mixing an information signal, a digital information signal at a sampling frequency fs is generated. A mixed signal is generated as a multiplication of the digital information signal with a mixing signal at the sampling frequency fs, wherein the mixing signal corresponds to a sinusoid having a frequency fm equal to fs/8.

    Abstract translation: 在混合信息信号的方法中,产生采样频率fs的数字信息信号。 产生混合信号作为数字信息信号与采样频率fs的混合信号的乘法,其中混频信号对应于具有等于fs / 8的频率fm的正弦曲线。

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