STEVEN EDWARD GARDNER, M.D.
Osteopathic Medicine at Genesee Ave, San Diego, CA

6058289, May 2, 2000

Sep 26, 1995

8/533682

Steven Holmsen Gardner - San Diego CA
Carl Thomas Hardin - Encinitas CA
James E. Petranovich - Encinitas CA

Pacific Communication Sciences, Inc. - Fremont CA

H04Q 708, H04Q 710, H04Q 712

455 313

A method and apparatus for efficient use of both power and bandwidth in a cellular communications system in which a Mobile Unit preferably enters Sleep-Mode when no communications have occurred between the Mobile Unit and the Base Station over a predetermined amount of time measured by an "Idle Timer". Upon expiry of a Wake Timer, the Mobile Unit awakes from Sleep-Mode to determine whether a message is pending. Concurrently, the Base Station transmits a "TEI-Notification" message directed to all Mobile Units to notify each Mobile Unit that has data pending. A system parameter determines the intervals at which the Base Station will transmit these notifications. Upon waking to receive a TEI-Notification message, the Mobile Unit determines whether the quality of the transmission is at least sufficient to allow the Mobile Unit to decipher the TEI-Notification message. If this minimal requirement is met, and the TEI-Notification message does not indicate that data is pending for the Mobile Unit, the Mobile Unit returns to sleep, even though the Mobile Unit may reside in a cell other than the cell associated with the Base Station currently assigned by the IS to communicate with the Mobile Unit. The Mobile Unit of the present invention does not monitor the forward channels on a regular basis, but rather waits until either the signal quality of the forward channel over which the Mobile Unit is receiving has degraded such that the TEI-Notification message can no longer be deciphered, or the TEI-Notification message indicates that a message is pending.

7876849, Jan 25, 2011

May 25, 2006

11/441697

Steven H. Gardner - San Diego CA, US

Viasat, Inc. - Carlsbad CA

H04B 7/02

375267, 375260, 375347, 375349, 375220

A data transmission method and apparatus are disclosed using receivers having spatial diversity, with the receivers communicating with a common client via network communication. Improved systems and methods for data transmission according to the disclosed method and apparatus include at least: a transmission source for transmitting a data signal; a first receiver for receiving the data signal; a second receiver for receiving the data signal, wherein the second receiver is spaced apart from the first receiver thereby providing spatial diversity; and a communication network for facilitating communication between a client and at least the first receiver and the second receiver, as needed, wherein the client is capable of analyzing individual data signals received by the first and second receivers and forming a composite signal of a higher quality than the quality of the individual data signals.

5819182, Oct 6, 1998

Nov 13, 1995

8/556350

Steven H. Gardner - San Diego CA
Carl Thomas Hardin - Encinitas CA

Pacific Communication Sciences, Inc. - San Diego CA

H04Q 730

524275

A method and apparatus for improving the signal-to-interference ratio and signal-to-noise ratio of a signal transmitted on a reverse channel from a mobile transmitter in a land mobile communications system by using a sectored cell in which the same channel is received by each sector of the cell. Each directional antenna is coupled to a unique associated receiver tuned to the same frequency or frequencies as the other receivers associated with each other directional antenna within the same sectored cell. Depending upon the location of the mobile end system with respect to the antenna pattern of each directional antenna, each signal will typically be redundantly received over more than one, but less than all, of the antennas. In accordance with the present invention, only one of the received signals is to be communicated from the base station to an intermediate system and all others are to be discarded. If multiple copies of the same message are received, then the control computer couples only one such copy to the intermediate system and discards each of the others.

5504786, Apr 2, 1996

Oct 5, 1993

8/132091

Steven H. Gardner - San Diego CA

Pacific Communication Sciences, Inc. - San Diego CA

H04B 710, H04L 102

375347

Open loop phase estimation methods and apparatus for coherent combining of signals on mobile channels using spatially diverse antennas are disclosed. In accordance with the method, the signals from each of two antennas are demodulated using inphase and quadrature components of a local carrier oscillator to provide RF demodulated inphase and quadrature components of the output of each antenna. These components are simultaneously sampled at a sample rate and digitized to provide the digitized components of the two signal vectors. A phase estimator vector having a phase equal to the difference in phase between the two signal vectors of each successive sample time is determined. An average phase estimator vector for a group of successive signal vectors is determined, and is used as the estimated phase difference between the signal vectors at the middle of the group of successive signal vectors to align the respective signal vectors prior to the same being combined into a single signal vector. Details of the method are disclosed, including variations such as the extension of the method to more than two antennas.

7257165, Aug 14, 2007

Apr 17, 2003

10/418748

Steven H. Gardner - San Diego CA, US

H04K 1/10, H04L 27/28

375260, 375150, 375512, 375516, 370210, 370208, 370203

A novel method and apparatus for preamble detection and time synchronization estimation in OFDM communication systems is described. The present invention can be easily implemented to provide preamble detection and highly accurate time synchronization estimations. The inventive method and apparatus utilizes phase and magnitude information obtained from a received signal to detect a preamble and to calculate a time synchronization estimation for the received signal.

7376075, May 20, 2008

Sep 24, 2004

10/949861

James E. Petranovich - San Diego CA, US
Yiorgos M. Peponides - Encinitas CA, US
Steven H. Gardner - San Diego CA, US
Cenk Kose - San Diego CA, US

Conexant Systems, Inc. - Newport Beach CA

H04J 9/00

370208, 370205

The modulation method and system of the presented herein involves mapping data onto a constellations comprising a set of concentric circles in a two-dimensional plane, one dimension for the amplitude and one for the phase. The phase dimension is coded differentially, while the amplitude dimension is coded coherently. The circles in each constellation may contain equal number of points, and in other embodiments more points may be used on the outer circles. The data may be coded with dual Trellis codes, one code for the phase data and another code for the amplitude data.