David Frank Willard

Person

Plantation, FL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Selective call receiver and method for detecting mandatory frames o...
- Patent number 6,477,381
- Issue date Nov 5, 2002
- Motorola, Inc.
- Karl Robert Weiss
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Selective call device and method for monitoring at least two commun...
- Patent number 6,229,794
- Issue date May 8, 2001
- Motorola, Inc.
- David F. Willard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus used in a simulcast radio communication system...
- Patent number 6,101,370
- Issue date Aug 8, 2000
- Motorola
- Eric Thomas Eaton
- G04 - HOROLOGY
Information Patent Grant
Messaging system providing flexible roaming and method therefor
- Patent number 5,956,640
- Issue date Sep 21, 1999
- Motorola, Inc.
- Eric T. Eaton
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Paging network identification information distributed in address field
- Patent number 5,686,898
- Issue date Nov 11, 1997
- Motorola, Inc.
- David Frank Willard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for selecting a receive frequency in a communi...
- Patent number 5,682,147
- Issue date Oct 28, 1997
- Motorola, Inc.
- Eric Thomas Eaton
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for dynamic group calling in a selective call...
- Patent number 5,635,914
- Issue date Jun 3, 1997
- Motorola, Inc.
- David R. Petreye
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Messaging system having roaming capability
- Patent number 5,625,351
- Issue date Apr 29, 1997
- Motorola, Inc.
- David F. Willard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network identification information placement architecture for messa...
- Patent number 5,610,919
- Issue date Mar 11, 1997
- Motorola, Inc.
- David F. Willard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Messaging system and method having roaming capability and controlle...
- Patent number 5,600,312
- Issue date Feb 4, 1997
- Motorola, Inc.
- David F. Willard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for synchronizing to a synchronous selective c...
- Patent number 5,555,183
- Issue date Sep 10, 1996
- Motorola, Inc.
- David F. Willard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Message fragmenting in a time diversity radio system
- Patent number 5,546,394
- Issue date Aug 13, 1996
- Motorola, Inc.
- Eric T. Eaton
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Addressing method for conserving power in distributed information r...
- Patent number 5,493,282
- Issue date Feb 20, 1996
- Motorola, Inc.
- David R. Petreye
- G08 - SIGNALLING
Information Patent Grant
Method and apparatus for delivering messages to portable communicat...
- Patent number 5,475,863
- Issue date Dec 12, 1995
- Motorola, Inc.
- Floyd Simpson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digitized stored voice paging receiver
- Patent number 5,455,579
- Issue date Oct 3, 1995
- Motorola, Inc.
- Paul T. Bennett
- G08 - SIGNALLING
Information Patent Grant
Selective call receiver for receiving a multiphase multiplexed signal
- Patent number 5,371,737
- Issue date Dec 6, 1994
- Motorola Inc.
- Leonard E. Nelson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Synchronous selective signalling system
- Patent number 5,325,088
- Issue date Jun 28, 1994
- Motorola, Inc.
- David F. Willard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Paging system using message fragmentation to redistribute traffic
- Patent number 5,311,516
- Issue date May 10, 1994
- Motorola, Inc.
- William J. Kuznicki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
"Selective call receiver"
- Patent number 5,252,963
- Issue date Oct 12, 1993
- Motorola, Inc.
- Gregory O. Snowden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-level symbol synchronizer
- Patent number 5,208,833
- Issue date May 4, 1993
- Motorola, Inc.
- Richard A. Erhart
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiple frequency message system
- Patent number 5,206,855
- Issue date Apr 27, 1993
- Motorola, Inc.
- Robert J. Schwendeman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time division multiplexed selective call system
- Patent number 5,168,493
- Issue date Dec 1, 1992
- Motorola, Inc.
- Leonard E. Nelson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of super battery saving in a selective call receiver
- Patent number 5,089,813
- Issue date Feb 18, 1992
- Motorola, Inc.
- Michael J. DeLuca
- G08 - SIGNALLING
Information Patent Grant
Mixed modulation level communication system
- Patent number 5,051,993
- Issue date Sep 24, 1991
- Motorola, Inc.
- Michael J. DeLuca
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digitized stored voice paging receiver
- Patent number 4,965,569
- Issue date Oct 23, 1990
- Motorola, Inc.
- Paul T. Bennett
- G08 - SIGNALLING
Information Patent Grant
Multiple frequency message system
- Patent number 4,914,649
- Issue date Apr 3, 1990
- Motorola, Inc.
- Robert J. Schwendeman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Paging receiver for storing digitized voice messages
- Patent number 4,873,520
- Issue date Oct 10, 1989
- Motorola, Inc.
- Kenneth D. Fisch
- G08 - SIGNALLING
Information Patent Grant
Portable communications receiver with separate information presenta...
- Patent number 4,803,487
- Issue date Feb 7, 1989
- Motorola, Inc.
- David F. Willard
- G08 - SIGNALLING
Information Patent Grant
Apparatus and method for fine synchronization of a communication re...
- Patent number 4,803,703
- Issue date Feb 7, 1989
- Motorola, Inc.
- Michael J. DeLuca
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pager with visible display indicating status of memory
- Patent number 4,412,217
- Issue date Oct 25, 1983
- Motorola, Inc.
- David F. Willard
- G08 - SIGNALLING

David Frank Willard

Person

Patents Grantslast 30 patents

Selective call receiver and method for detecting mandatory frames o...

Selective call device and method for monitoring at least two commun...

Method and apparatus used in a simulcast radio communication system...

Messaging system providing flexible roaming and method therefor

Paging network identification information distributed in address field

Method and apparatus for selecting a receive frequency in a communi...

Method and apparatus for dynamic group calling in a selective call...

Messaging system having roaming capability

Network identification information placement architecture for messa...

Messaging system and method having roaming capability and controlle...

Method and apparatus for synchronizing to a synchronous selective c...

Message fragmenting in a time diversity radio system

Addressing method for conserving power in distributed information r...

Method and apparatus for delivering messages to portable communicat...

Digitized stored voice paging receiver

Selective call receiver for receiving a multiphase multiplexed signal

Synchronous selective signalling system

Paging system using message fragmentation to redistribute traffic

"Selective call receiver"

Multi-level symbol synchronizer

Multiple frequency message system

Time division multiplexed selective call system

Method of super battery saving in a selective call receiver

Mixed modulation level communication system

Digitized stored voice paging receiver

Multiple frequency message system

Paging receiver for storing digitized voice messages

Portable communications receiver with separate information presenta...

Apparatus and method for fine synchronization of a communication re...

Pager with visible display indicating status of memory