AM-FM COMBINED STEREO RECEIVER
    33.
    发明专利

    公开(公告)号:CA2100342A1

    公开(公告)日:1992-08-07

    申请号:CA2100342

    申请日:1992-02-04

    Applicant: MOTOROLA INC

    Abstract: An improved AM-FM combined stereo receiver is provided having a single processor for removing, in the FM mode, arctangent distortion, and in the AM mode, to process the phase term from arctangent to determine Further, the radio includes a single discriminator circuit, wherein, in the FM mode, the discriminator tank circuit is used to convert frequency deviation to baseband audio, and in the AM mode, the discriminator tank circuit is used as the frequency-determining element for the voltage controlled oscillator (VCO), the VCO being used to translate the intermediate frequency (IF) signal to baseband.

    34.
    发明专利
    未知

    公开(公告)号:BR8801268A

    公开(公告)日:1988-10-25

    申请号:BR8801268

    申请日:1988-03-21

    Applicant: MOTOROLA INC

    Abstract: An improved radio receiver that maintains a stable predetermined IF frequency upon receipt of input carrier signals of differing frequencies. The IF signal (14) is processed through a signal demodulation unit (16) that includes a tangent processing unit (22) to yield a control signal that varies as a tangent function of both the demodulated IF signal and a reference signal from a reference oscillator (17). This control signal is used to control the frequency and phase of a reference signal (26) used by the IF stage (12) to center the IF signal with respect to the IF stage characteristics.

    DUAL INDICATOR CIRCUIT FOR TUNING AND STEREO SIGNALS

    公开(公告)号:GB2160042A

    公开(公告)日:1985-12-11

    申请号:GB8510968

    申请日:1985-04-30

    Applicant: MOTOROLA INC

    Abstract: In a stereophonic broadcasting receiver, a single indicator with two levels of illumination serves to provide indication of both accurate tuning and the presence of stereophonic signals. One signal or a combination of signals related to the tuning circuits of the receiver cause the indicator to be illuminated to a perceptible level. When, by use of a pilot tone detector, it is certain that stereophonic signals are being received, additional current is caused to flow through the indicator, raising the illumination to the maximum allowable level. The circuit has particular application to manually tuned receivers.

    AM-FM COMBINED STEREO RECEIVER
    36.
    发明公开
    AM-FM COMBINED STEREO RECEIVER 失效
    AM-FM组合式立体声接收器

    公开(公告)号:EP0570480A4

    公开(公告)日:1994-07-06

    申请号:EP92905667

    申请日:1992-02-04

    Applicant: MOTOROLA INC

    CPC classification number: H03D3/241 H03D5/00 H04B1/1646

    Abstract: An improved AM-FM combined stereo receiver (100) is provided having a single processor (155) for removing, in the FM mode, arc-tangent distortion, and in the AM mode, to process the phase term from arc-tangent {L - R/1 + L + R} to determine {L - R/1 + L + R}. Further, the radio includes a single discriminator circuit (161, 137, 139) wherein, in the FM mode, the discriminator tank circuit (137, 139) is used to convert frequency deviation to baseband audio and, in the AM mode, the discriminator tank circuit is used as the frequency-determining element for the voltage controlled oscillator (VCO) (161), the VCO being used to translate the intermediate frequency (IF) signal to baseband.

    METHOD AND APPARATUS FOR SETTING UP AND MANAGING OPERATIONAL ENVIRONMENT IN P2P WIRELESS NETWORKS
    37.
    发明申请
    METHOD AND APPARATUS FOR SETTING UP AND MANAGING OPERATIONAL ENVIRONMENT IN P2P WIRELESS NETWORKS 审中-公开
    用于建立和管理P2P无线网络中的操作环境的方法和设备

    公开(公告)号:WO2009023478A1

    公开(公告)日:2009-02-19

    申请号:PCT/US2008072234

    申请日:2008-08-05

    CPC classification number: H04W88/06 H04W16/14

    Abstract: In a cognitive radio, a method of establishing an operational policy for use in a Peer-to-Peer (P2P) group, wherein the policy can be described by layers of policy parameters with progressively higher layers having a progressively increasing number of parameters, involves determining that a policy change is to be made from a current policy (316); requesting policy information from at least one P2P group member (320); receiving a policy description from the at least one P2P group member (322); and implementing a change in the lowest layer policy parameter to establish a new operational policy (324).

    Abstract translation: 在认知无线电中,一种建立在对等(P2P)组中使用的操作策略的方法,其中该策略可以由具有逐渐增加的参数数量的渐进较高层的策略参数层来描述,涉及 确定将从当前策略进行策略改变(316); 从至少一个P2P组成员(320)请求策略信息; 从所述至少一个P2P组成员(322)接收策略描述; 并且实施最低层策略参数的改变以建立新的操作策略(324)。

    METHOD AND APPARATUS FOR ALLOWING COMMUNICATION UNITS TO UTILIZE NON-LICENSED SPECTRUM
    40.
    发明申请
    METHOD AND APPARATUS FOR ALLOWING COMMUNICATION UNITS TO UTILIZE NON-LICENSED SPECTRUM 审中-公开
    允许通信单位利用非授权频谱的方​​法和装置

    公开(公告)号:WO2006047063A3

    公开(公告)日:2006-06-29

    申请号:PCT/US2005036154

    申请日:2005-10-05

    CPC classification number: H04W74/00 H04W16/14 H04W48/16 H04W72/02

    Abstract: A method and apparatus for allowing communication units (100) to utilize non-licensed spectrum is provided herein. In particular, when a radio (100) determines a need to transmit within non-licensed spectrum, the radio (100) searches for a beacon being transmitted (303). The beacon identifies a priority of the current user of the non-licensed spectrum (305). If the radio's (100) priority is higher than the current user of the non-licensed spectrum, or if no beacon is heard, the radio (100) may begin transmitting within the non-licensed spectrum (311). As part of the radio's (100) transmission, a beacon will be broadcast by the radio (100) identifying the radio's (100) priority.

    Abstract translation: 本文提供了允许通信单元(100)利用未授权频谱的方​​法和装置。 特别地,当无线电设备(100)确定在非授权频谱内发送的需要时,无线电设备(100)搜索正被发送的信标(303)。 信标识别未授权频谱的当前用户的优先级(305)。 如果无线电的(100)优先级高于非授权频谱的当前用户,或者如果没有信标被听到,则无线电(100)可以在非许可频谱(311)内开始发送。 作为无线电(100)传输的一部分,将通过识别无线电(100)优先级的无线电(100)广播信标。

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