Sandra J. K. Earlam

Person

San Diego, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Subscriber unit for wireless digital telephone system
- Patent number 5,842,137
- Issue date Nov 24, 1998
- InterDigital Technology Corporation
- David N. Critchlow
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subscriber unit for wireless digital telephone system
- Patent number 5,177,741
- Issue date Jan 5, 1993
- International Mobile Machines Corporation
- David N. Critchlow
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic adaptive equalizer
- Patent number 5,168,507
- Issue date Dec 1, 1992
- International Mobile Machines Corporation
- David N. Critchlow
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency synthesizer circuit
- Patent number 5,159,705
- Issue date Oct 27, 1992
- International Mobile Machines Corporation
- David N. Critchlow
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital time-multiplexed quadrature frequency upconverter
- Patent number 5,101,418
- Issue date Mar 31, 1992
- International Mobile Machines Corporation
- David N. Critchlow
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Interpolator for varying a signal sampling rate
- Patent number 5,067,141
- Issue date Nov 19, 1991
- International Mobile Machine Corporation
- David N. Critchlow
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Deglitching means for digital communication systems
- Patent number 4,996,697
- Issue date Feb 26, 1991
- International Mobile Machines Corporation
- David N. Critchlow
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subscriber unit for wireless digital telephone system
- Patent number 4,994,802
- Issue date Feb 19, 1991
- International Mobile Machines Corporation
- David N. Critchlow
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital signals and frequency correction in a digital wireless system
- Patent number 4,893,317
- Issue date Jan 9, 1990
- International Mobile Machines Corporation
- David N. Critchlow
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
AM equalizer circuit for digital systems
- Patent number 4,881,240
- Issue date Nov 14, 1989
- International Mobile Machines Corporation
- David N. Critchlow
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subscriber unit for wireless digital telephone system
- Patent number 4,825,448
- Issue date Apr 25, 1989
- International Mobile Machines Corporation
- David N. Critchlow
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Sandra J. K. Earlam

Person

Patents Grantslast 30 patents

Subscriber unit for wireless digital telephone system

Subscriber unit for wireless digital telephone system

Automatic adaptive equalizer

Frequency synthesizer circuit

Digital time-multiplexed quadrature frequency upconverter

Interpolator for varying a signal sampling rate

Deglitching means for digital communication systems

Subscriber unit for wireless digital telephone system

Digital signals and frequency correction in a digital wireless system

AM equalizer circuit for digital systems

Subscriber unit for wireless digital telephone system