Invention Grant
- Patent Title: Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
- Patent Title (中): 使用通用频率转换技术的无线局域网(WLAN),包括多相实施例和电路实现
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Application No.: US11041422Application Date: 2005-01-25
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Publication No.: US07653145B2Publication Date: 2010-01-26
- Inventor: David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses, Jr. , Gregory S. Rawlins , Michael W. Rawlins
- Applicant: David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses, Jr. , Gregory S. Rawlins , Michael W. Rawlins
- Applicant Address: US FL Jacksonville
- Assignee: ParkerVision, Inc.
- Current Assignee: ParkerVision, Inc.
- Current Assignee Address: US FL Jacksonville
- Agency: Sterne Kessler Goldstein & Fox, P.L.L.C.
- Main IPC: H04L27/04
- IPC: H04L27/04

Abstract:
Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal generator, a demodulation/modulation facilitation module, and a MAC interface. The WLAN receiver includes at least one universal frequency translation module that frequency down-converts a received EM signal. In embodiments, the UFT based receiver is configured in a multi-phase embodiment to reduce or eliminate re-radiation that is caused by DC offset. The WLAN transmitter includes at least one universal frequency translation module that frequency up-converts a baseband signal in preparation for transmission over the wireless LAN. In embodiments, the UFT based transmitter is configured in a differential and multi-phase embodiment to reduce carrier insertion and spectral growth.
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