Wai-Cheung Tang

Person

Mannhein, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Transceiver redundancy in an electronic toll collection system
- Patent number 7,813,699
- Issue date Oct 12, 2010
- Mark IV Industries Corp
- Thua Van Ho
- G07 - CHECKING-DEVICES
Information Patent Grant
Multi-band antenna
- Patent number 7,463,197
- Issue date Dec 9, 2008
- Mark IV Industries Corp.
- Gholamreza Zeinolabedin Rafi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Dual mode electronic toll collection transponder
- Patent number 7,408,480
- Issue date Aug 5, 2008
- Mark IV Industries Corp
- Henry Sun Yee Woo
- G08 - SIGNALLING
Information Patent Grant
Method of enabling two-state operation of electronic toll collectio...
- Patent number 7,388,501
- Issue date Jun 17, 2008
- Mark IV Industries Corp
- Wai-Cheung Tang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Compact microstrip transponder antenna
- Patent number 7,342,500
- Issue date Mar 11, 2008
- Mark IV Industries, Corp.
- Thua Van Ho
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
External indicator for electronic toll communications
- Patent number 7,262,711
- Issue date Aug 28, 2007
- Mark IV Industries Corp.
- Jeffrey Zhu
- G07 - CHECKING-DEVICES
Information Patent Grant
Electronic toll collection system
- Patent number 7,233,260
- Issue date Jun 19, 2007
- Mark IV Industries Corp.
- Wai-Cheung Tang
- G08 - SIGNALLING
Information Patent Grant
Compact inverted-F antenna
- Patent number 7,183,976
- Issue date Feb 27, 2007
- Mark IV Industries Corp.
- Ke-Li Wu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Microwave filter with adaptive predistortion
- Patent number 6,882,251
- Issue date Apr 19, 2005
- COM DEV Ltd.
- Ming Yu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Folded single mode dielectric resonator filter with cross couplings...
- Patent number 5,608,363
- Issue date Mar 4, 1997
- Com Dev Ltd.
- Richard J. Cameron
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Multi-mode temperature compensated filters and a method of construc...
- Patent number 5,589,807
- Issue date Dec 31, 1996
- Com Dev Ltd.
- Wai-Cheung Tang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Dielectric image-resonator multiplexer
- Patent number 4,881,051
- Issue date Nov 14, 1989
- Com Dev Ltd.
- Wai-Cheung Tang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Triple mode dielectric loaded bandpass filter
- Patent number 4,675,630
- Issue date Jun 23, 1987
- Com Dev Ltd.
- Wai-Cheung Tang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Planar dual-mode cavity filters including dielectric resonators
- Patent number 4,652,843
- Issue date Mar 24, 1987
- Com Dev Ltd.
- Wai-Cheung Tang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Odd order elliptic waveguide cavity filters
- Patent number 4,644,305
- Issue date Feb 17, 1987
- Com Dev Ltd.
- Wai-Cheung Tang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cascade waveguide triple-mode filters useable as a group delay equa...
- Patent number 4,630,009
- Issue date Dec 16, 1986
- Com Dev Ltd.
- Wai-Cheung Tang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Group delay equalizers using short circuit triple mode filters
- Patent number 4,622,523
- Issue date Nov 11, 1986
- Com Dev Ltd.
- Wai-Cheung Tang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Bandpass filter with plurality of wave-guide cavities
- Patent number 4,513,264
- Issue date Apr 23, 1985
- Com Dev Ltd.
- James B. Dorey
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
TRANSCEIVER REDUNDANCY IN AN ELECTRONIC TOLL COLLECTION SYSTEM
- Publication number 20100022202
- Publication date Jan 28, 2010
- Thua Van Ho
- G07 - CHECKING-DEVICES
Information Patent Application
ELECTRONIC TOLL COLLECTION SYSTEM WITH MULTI-BEAM ANTENNAS
- Publication number 20080278347
- Publication date Nov 13, 2008
- Thua Van Ho
- G07 - CHECKING-DEVICES
Information Patent Application
RFID-BASED SYSTEM AND METHOD FOR DRIVE-THROUGH ORDERING
- Publication number 20080218313
- Publication date Sep 11, 2008
- Loek d'Hont
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
RFID systems and methods of operating the same in power-saving modes
- Publication number 20080061943
- Publication date Mar 13, 2008
- Ke-Li Wu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Multi-Mode Antenna Array
- Publication number 20070279286
- Publication date Dec 6, 2007
- MARK IV INDUSTRIES CORP.
- Gordon Coutts
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method of enabling two-state operation of electronic toll collectio...
- Publication number 20070268140
- Publication date Nov 22, 2007
- Wai-Cheung Tang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Compact microstrip transponder antenna
- Publication number 20070222607
- Publication date Sep 27, 2007
- Thua Van Ho
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method and system for obtaining traffic information using transponders
- Publication number 20070118273
- Publication date May 24, 2007
- Wai-Cheung Tang
- G08 - SIGNALLING
Information Patent Application
Multi-band antenna
- Publication number 20070085741
- Publication date Apr 19, 2007
- Gholamreza Zeinolabedin Rafi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TRANSCEIVER REDUNDANCY IN AN ELECTRONIC TOLL COLLECTION SYSTEM
- Publication number 20070077896
- Publication date Apr 5, 2007
- Thua Van Ho
- G07 - CHECKING-DEVICES
Information Patent Application
Dynamic timing adjustment in an electronic toll collection system
- Publication number 20070008184
- Publication date Jan 11, 2007
- Thua Van Ho
- G07 - CHECKING-DEVICES
Information Patent Application
Dual mode electronic toll collection transponder
- Publication number 20060255968
- Publication date Nov 16, 2006
- Henry Sun Yee Woo
- G07 - CHECKING-DEVICES
Information Patent Application
Open road vehicle emissions inspection
- Publication number 20060255967
- Publication date Nov 16, 2006
- Henry Sun Yee Woo
- G07 - CHECKING-DEVICES
Information Patent Application
RF transponder with electromechanical power
- Publication number 20060176153
- Publication date Aug 10, 2006
- Wai-Cheung Tang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
External indicator for electronic toll communications
- Publication number 20060082470
- Publication date Apr 20, 2006
- Jeffrey Zhu
- G07 - CHECKING-DEVICES
Information Patent Application
Electronic toll collection system
- Publication number 20060071816
- Publication date Apr 6, 2006
- Wai-Cheung Tang
- G07 - CHECKING-DEVICES
Information Patent Application
Compact inverted-F antenna
- Publication number 20060017628
- Publication date Jan 26, 2006
- Ke-Li Wu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Microwave filter with adaptive predistortion
- Publication number 20040108920
- Publication date Jun 10, 2004
- COM DEV Ltd.
- Ming Yu
- H01 - BASIC ELECTRIC ELEMENTS

Wai-Cheung Tang

Person

Patents Grantslast 30 patents

Transceiver redundancy in an electronic toll collection system

Multi-band antenna

Dual mode electronic toll collection transponder

Method of enabling two-state operation of electronic toll collectio...

Compact microstrip transponder antenna

External indicator for electronic toll communications

Electronic toll collection system

Compact inverted-F antenna

Microwave filter with adaptive predistortion

Folded single mode dielectric resonator filter with cross couplings...

Multi-mode temperature compensated filters and a method of construc...

Dielectric image-resonator multiplexer

Triple mode dielectric loaded bandpass filter

Planar dual-mode cavity filters including dielectric resonators

Odd order elliptic waveguide cavity filters

Cascade waveguide triple-mode filters useable as a group delay equa...

Group delay equalizers using short circuit triple mode filters

Bandpass filter with plurality of wave-guide cavities

Patents Applicationslast 30 patents

TRANSCEIVER REDUNDANCY IN AN ELECTRONIC TOLL COLLECTION SYSTEM

ELECTRONIC TOLL COLLECTION SYSTEM WITH MULTI-BEAM ANTENNAS

RFID-BASED SYSTEM AND METHOD FOR DRIVE-THROUGH ORDERING

RFID systems and methods of operating the same in power-saving modes

Multi-Mode Antenna Array

Method of enabling two-state operation of electronic toll collectio...

Compact microstrip transponder antenna

Method and system for obtaining traffic information using transponders

Multi-band antenna

TRANSCEIVER REDUNDANCY IN AN ELECTRONIC TOLL COLLECTION SYSTEM

Dynamic timing adjustment in an electronic toll collection system

Dual mode electronic toll collection transponder

Open road vehicle emissions inspection

RF transponder with electromechanical power

External indicator for electronic toll communications

Electronic toll collection system

Compact inverted-F antenna

Microwave filter with adaptive predistortion