会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Communication system and method using asynchronous and isochronous
spectrum for voice and data
    • 用于语音和数据的异步和等时频谱通信系统和方法
    • US6011784A
    • 2000-01-04
    • US769026
    • 1996-12-18
    • David L. BrownPaul D. MarkoJaime A. Borras
    • David L. BrownPaul D. MarkoJaime A. Borras
    • H04L12/28H04J3/24
    • H04W74/02H04W48/08H04W72/0446
    • In a time division, multiple access system, a base station (102) transmits an isochronous beacon (404, 422) at the start of each frame (400), conveying control and timing information. Following the isochronous beacon (404), isochronous time slots (414, 416, 418, 420) are dynamically allocated for communication of isochronous data. After communication of the isochronous data, the remainder of the frame (400) before the next isochronous beacon (422) is used for transmission of packets of asynchronous data. This technique gives priority to the isochronous data, which is real time, while also maximizing the bandwidth allocated for asynchronous data. A single transmitter circuit (124, 158) and receiver circuit (122, 156) at each station are used for communication of both isochronous data and asynchronous data.
    • 在时分多址接入系统中,基站(102)在每帧开始时发送等时信标(404,422),传送控制和定时信息。 在等时信标(404)之后,动态分配同步时隙(414,416,418,420)用于同步数据的通信。 在同步数据通信之后,在下一个同步信标(422)之前的帧(400)的剩余部分被用于异步数据分组的传输。 这种技术优先考虑实时的同步数据,同时最大化分配给异步数据的带宽。 每个站处的单个发射机电路(124,158)和接收机电路(122,156)用于同步数据和异步数据的通信。
    • 5. 发明授权
    • Transceiver having a divide-down transmit offset scheme
    • 收发器具有分频传输偏移方案
    • US5276915A
    • 1994-01-04
    • US787279
    • 1991-11-04
    • Paul D. MarkoJaime A. Borras
    • Paul D. MarkoJaime A. Borras
    • H04B1/40H04B15/04
    • H04B1/405H04B15/04H04B2215/064
    • A radio communication device, having a receive mode and a transmit mode, includes a receiver portion, a transmitter portion, and multiple oscillators for providing reference waveforms for the radio communication device. During the receive mode, the receiver portion receives signals having a selected frequency, converts received signals to at least a first intermediate frequency (IF), and a transmitter oscillator produces a first waveform having a frequency equal to a multiple of the first intermediate frequency during the receive mode. During the transmit mode, the transmitter portion requires a reference waveform having an offset frequency equivalent to the first IF frequency to produce a radio frequency signal. Thus, the radio communication device also comprises a divider coupled to the transmitter oscillator for dividing the frequency of the first waveform to the required offset frequency in the transmit mode.
    • 具有接收模式和发送模式的无线电通信装置包括用于为无线电通信装置提供参考波形的接收机部分,发射机部分和多个振荡器。 在接收模式期间,接收机部分接收具有选定频率的信号,将接收到的信号转换成至少第一中频(IF),发射机振荡器产生频率等于第一中频倍数的第一波形 接收模式。 在发射模式期间,发射机部分需要具有等于第一IF频率的偏移频率的参考波形,以产生射频信号。 因此,无线电通信设备还包括耦合到发射机振荡器的分频器,用于在发送模式中将第一波形的频率划分为所需的偏移频率。