William S. H. Cheung

Follow

Person

Hong Kong, HK

People

Patents Grantslast 30 patents

Information Patent Grant
Network for providing group delay equalization for filter networks
- Patent number 6,476,685
- Issue date Nov 5, 2002
- William S. H. Cheung
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Apparatus for producing audio and visual signals for modulating a t...
- Patent number 4,620,226
- Issue date Oct 28, 1986
- William S. H. Cheung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for encoding and decoding information
- Patent number 4,527,195
- Issue date Jul 2, 1985
- Payview Limited
- William S. H. Cheung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmitting and receiving apparatus for permitting the transmissio...
- Patent number 4,430,669
- Issue date Feb 7, 1984
- Payview Limited
- William S. H. Cheung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for encoding of information
- Patent number 4,396,947
- Issue date Aug 2, 1983
- Payview Limited
- William S. H. Cheung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for encoding of information
- Patent number 4,329,711
- Issue date May 11, 1982
- Payview Limited
- William S. H. Cheung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE