Invention Grant
- Patent Title: RFID reader architecture
- Patent Title (中): RFID读写器架构
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Application No.: US11377812Application Date: 2006-03-16
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Publication No.: US07664461B2Publication Date: 2010-02-16
- Inventor: Ahmadreza (Reza) Rofougaran , Kambiz Shoarinejad
- Applicant: Ahmadreza (Reza) Rofougaran , Kambiz Shoarinejad
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Garlick Harrison & Markison
- Agent Holly L. Rudnick
- Main IPC: H04B5/00
- IPC: H04B5/00

Abstract:
A highly integrated and low-cost reader for a radio frequency identification (RFID) system is realized by providing a transmitter operable to generate an outbound radio frequency (RF) signal and a receiver operable to receive an inbound RF signal having a frequency similar to a frequency of the outbound RF signal on a single integrated circuit. Since the inbound RF signal may include not only a modulated RF signal produced by an RFID tag responsive to the outbound RF signal, but also a blocking signal corresponding to the outbound RF signal, the receiver additionally includes a block cancellation module operable to substantially cancel the blocking signal from the inbound RF signal using the outbound RF signal and to substantially pass the modulated RF signal before down-conversion of the modulated RF signal.
Public/Granted literature
- US20070207732A1 RFID reader architecture Public/Granted day:2007-09-06
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