Li-Cheng Zai

Person

Tarrytown, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for active RFID network
- Patent number 7,982,585
- Issue date Jul 19, 2011
- Li-Cheng Richard Zai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system of using active RFID tags to provide a reliable a...
- Patent number 7,176,797
- Issue date Feb 13, 2007
- Li-Cheng Richard Zai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data recovery system for radio frequency identification interrogator
- Patent number 6,501,807
- Issue date Dec 31, 2002
- Intermec IP Corp.
- Trieu C. Chieu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Apparatus for transporting radio frequency power to energize radio...
- Patent number 6,429,775
- Issue date Aug 6, 2002
- Intermec IP Corp.
- Rene D. Martinez
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Apparatus, system, and method for communication between multiple ba...
- Patent number 6,384,712
- Issue date May 7, 2002
- Intermec IP Corp
- Kenneth Alan Goldman
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Radio frequency identification interrogator signal processing syste...
- Patent number 6,122,329
- Issue date Sep 19, 2000
- Intermec IP Corp.
- Li-Cheng Zai
- G01 - MEASURING TESTING
Information Patent Grant
Method for communicating with RF transponders
- Patent number 5,995,019
- Issue date Nov 30, 1999
- Intermec I.P. Corp
- Trieu Can Chieu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of transporting radio frequency power to energize radio freq...
- Patent number 5,850,181
- Issue date Dec 15, 1998
- International Business Machines Corporation
- Harley Kent Heinrich
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of grouping RF transponders
- Patent number 5,777,561
- Issue date Jul 7, 1998
- International Business Machines Corporation
- Trieu Can Chieu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and system for controlling high-speed probe actuators
- Patent number 5,635,848
- Issue date Jun 3, 1997
- International Business Machines Corporation
- James M. Hammond
- G01 - MEASURING TESTING
Information Patent Grant
System and method for testing and fault isolation of high density p...
- Patent number 5,621,327
- Issue date Apr 15, 1997
- International Business Machines Corporation
- Shinwu Chiang
- G01 - MEASURING TESTING
Information Patent Grant
Filtering for electronic module test
- Patent number 5,541,520
- Issue date Jul 30, 1996
- International Business Machines Corporation
- Li-Cheng R. Zai
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for direct communication in a TDMA radio commu...
- Patent number 5,515,366
- Issue date May 7, 1996
- International Business Machines Corporation
- Trieu C. Chieu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for testing and fault isolation of high density p...
- Patent number 5,402,072
- Issue date Mar 28, 1995
- International Business Machines Corporation
- Shinwu Chiang
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Method And Apparatus For Establishing Time-Based Loyalty Relationship
- Publication number 20090281888
- Publication date Nov 12, 2009
- Li-Cheng Richard Zai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and apparatus for electronic-sign system
- Publication number 20090153348
- Publication date Jun 18, 2009
- Li-Cheng Richard Zai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Location based electronic sign system
- Publication number 20080284566
- Publication date Nov 20, 2008
- Li-Cheng Richard Zai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and apparatus for active RFID network
- Publication number 20080204193
- Publication date Aug 28, 2008
- Li-Cheng Richard Zai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and system of using active RFID tags to provide a reliable a...
- Publication number 20050093679
- Publication date May 5, 2005
- Li-Cheng Richard Zai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and system of using a RFID reader network to provide a large...
- Publication number 20050088284
- Publication date Apr 28, 2005
- Li-Cheng Richard Zai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and apparatus for a secure RFID system
- Publication number 20050061875
- Publication date Mar 24, 2005
- Li-Cheng Richard Zai
- G06 - COMPUTING CALCULATING COUNTING

Li-Cheng Zai

Person

Patents Grantslast 30 patents

Method and apparatus for active RFID network

Method and system of using active RFID tags to provide a reliable a...

Data recovery system for radio frequency identification interrogator

Apparatus for transporting radio frequency power to energize radio...

Apparatus, system, and method for communication between multiple ba...

Radio frequency identification interrogator signal processing syste...

Method for communicating with RF transponders

Method of transporting radio frequency power to energize radio freq...

Method of grouping RF transponders

Method and system for controlling high-speed probe actuators

System and method for testing and fault isolation of high density p...

Filtering for electronic module test

Method and apparatus for direct communication in a TDMA radio commu...

System and method for testing and fault isolation of high density p...

Patents Applicationslast 30 patents

Method And Apparatus For Establishing Time-Based Loyalty Relationship

Method and apparatus for electronic-sign system

Location based electronic sign system

Method and apparatus for active RFID network

Method and system of using active RFID tags to provide a reliable a...

Method and system of using a RFID reader network to provide a large...

Method and apparatus for a secure RFID system