Telecommunications – Transmitter and receiver at separate stations – Short range rf communication
Reexamination Certificate
2007-03-27
2007-03-27
Urban, Edward F. (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Short range rf communication
C455S323000, C455S303000, C375S334000
Reexamination Certificate
active
11021302
ABSTRACT:
An RFID reader accessible thorough a personal computer and includes a PC card interface and a controller both operating according to clock signals from a crystal oscillator. The RFID reader further includes a linearized power amplifier modulator in a transmit path, a receive chain capable of demodulating EPCglobal Class_1 and Class_0 signals from RFID tags, and an integrated switching device for selecting one of a plurality of antenna for transmitting or receiving RF signals.
REFERENCES:
patent: 1850187 (1932-03-01), Thewes
patent: 2107910 (1938-02-01), Schumacher
patent: 2114971 (1938-04-01), Segeler
patent: 3659227 (1972-04-01), Whistler
patent: 5023935 (1991-06-01), Vancraeynest
patent: 5241566 (1993-08-01), Jackson
patent: 5590411 (1996-12-01), Sroka et al.
patent: 5710523 (1998-01-01), Kobayashi
patent: 5850187 (1998-12-01), Carrender et al.
patent: 5862460 (1999-01-01), Rich
patent: 6002344 (1999-12-01), Bandy et al.
patent: 6104240 (2000-08-01), Fujimoto et al.
patent: 6107910 (2000-08-01), Nysen
patent: 6114971 (2000-09-01), Nysen
patent: 6266528 (2001-07-01), Farzaneh
patent: 6275687 (2001-08-01), Lloyd
patent: 6317608 (2001-11-01), Glocker
patent: 6327481 (2001-12-01), Nagashima
patent: 6529080 (2003-03-01), Seymour et al.
patent: 6636730 (2003-10-01), Spargo et al.
patent: 6657592 (2003-12-01), Dening et al.
patent: 6737973 (2004-05-01), Jesme
patent: 6774863 (2004-08-01), Shirosaka et al.
patent: 6837435 (2005-01-01), Kehoe et al.
patent: 6972626 (2005-12-01), Takahashi et al.
patent: 6983025 (2006-01-01), Schell
patent: 2002/0017981 (2002-02-01), Turner
patent: 2002/0049044 (2002-04-01), Indseth
patent: 2002/0055337 (2002-05-01), Persico et al.
patent: 2004/0069852 (2004-04-01), Seppinen et al.
patent: 2004/0160309 (2004-08-01), Stilp
patent: 2004/0203478 (2004-10-01), Scott
patent: 2005/0027604 (2005-02-01), Bandy et al.
patent: 2005/0087599 (2005-04-01), Ward et al.
patent: 2005/0210173 (2005-09-01), Kehoe et al.
Garver, J., Excerpts from “Microwave Diode Control Devices”, Harry Diamond Laboratories, Artech House, Inc. Standard Book No. 0-89006-022-3, Library of Congress Catalog Card No. 74-82596, (1976) Figs. 7-4-7-9 and Figs. 7-12-7-13, pp. 186-188 and p. 192.
Hill, Joseph C., et al., “PIN Diode Switches Handle High-Power Applications”, Reprinted from Microwave Systems News—Technical Feature, (Jun. 1989) pp. 1-6.
Waugh, Raymond W., “SPDT Switch Serves PCN Applications—Minimal Loss, High Isolation, and Low Cost Were Driving Forces in the Design of this Battery-Powered Transmit/Receive Switch”, Microwaves & RF—Design Feature, (Jan. 1994) pp. 111-118.
White, Joseph F., Excerpts from “Microwave Semiconductor Engineering”, Van Nostrand Reinhold Company, (1982) Fig. VIII-49 p. 373.
Iwai, T., “42%High-Efficiency Two-Stage HBT Power-Amplifier MMIC for W-CDMA Cellular Phone Systems,” IEEE Trans Microwave Theory & Techniques, vol. 48#12, (2000) p. 2567.
Jeon, Y. et al., “Improved HBT Linearity with a Post-Distortion-Type Collector Linearizer”, IEEE Microwave and Wireless Components Ltters, vol. 13#13 (2003) p. 102.
Kang, S., et al., “Linearity Analysis of CMOS for RF Application”, IEEE Radio Frequency Integrated Circuits Symposium, Paper TU4A-5, (2002) p. 363.
Kawamura, H., et al., “A Miniature44%Efficiency GaAs HBT Power Amplifier MMIC for the W-CDMA Application”, IEEE GaAs Digest, (2000) p. 25.
Kim, et al.,“A5-GHZ LNA for Wireless LAN Application Based On0.5Micron SiGe BiMOS”, IEEE 3rdInternational Conference on Microwave and Millimeter Wave Technology, (2003) p. 50.
Kim, et al., “High Linear Hbt Mmic Power Amplifer With Partial Rf Coupling To Bias Circuit For W-Cdma Portable Applications”, IEEE 3rdInternational Conference on Microwave and Millimeter Wave Technology, (2003) p.809.
Ko, et al., “Effect of Blas Scheme on Intermodulation Distortion and Its Use for the Design of PCS TX Driver”, IEEE Radio Frequency Integrated Circuits Symposium, Paper MON3C-5, (2000) p. 105.
Noh, Y., “PCS/W-CDMA Dual-Band MMIC Power Amplifier with a Newly Proposed Linearizing Bias Circuit, ” IEEE J. Soild State Circuits, 37#9 *(2002) p. 1096.
Taniguchi, et al., “Dual Bias Feed SiGe HBT Low Noise Linear Amplifer”, IEEE Radio Frequency Integrated Circuits Symposium, Paper TUE4A-2 (2001) p. 227.
Trask, C., “High Efficiency Broadband Linear Push-Pull Power Amplifiers Using Linearity Augmentation”, IEEE International Symposium on Circuits ans Systems, vol. 2:26-29 (2002) p. II-432.
Waugh, Raymond W., “SPDT Switch Serves PCN Applications- Minimal Loss, High Isolation, and Low Cost Were Driving Forces in the Design of this Battery-Powered Transmit/Recieve Switch”, Microwaves & RF-Design Feature, (Jan. 1994) pp. 111-118.
Yoshimasu, et al., “An HBT MMIC Power Amplifier with an Integrated Diode Linearizer for Low-Voltage Portable Phone Applications”, IEEE J. Solid State Circuits, vol. 33#9 (1998) p. 1290.
Dorsey & Whitney LLP
Jackson Blane J.
Urban Edward F.
WJ Communications, Inc.
LandOfFree
Multiprotocol RFID reader does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multiprotocol RFID reader, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiprotocol RFID reader will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3771918