Inventor
Steven H. Gardner
Inventor
San Diego, CA, US
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication31%
H04WWireless communication networks24%
H04BTransmission21%
H04NPictorial communication, e.g. television5%
H03CModulation2%
H03DDemodulation or transference of modulation from one carrier to another2%
H03FAmplifiers2%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses2%
H03MCoding2%
H04JMultiplex communication2%
PatentTitleYear
7,876,849'Data transmission method and apparatus using networked receivers having spatial diversity'20117,852,868'Method and apparatus for establishing circuit connections over local area networks with frequency selective impairments'20107,830,907'Frame structure for OFDM signaling, including beacons and traffic'20107,724,637'Method and apparatus for controlled spectrum multi-carrier modulation'20107,450,604'Method and apparatus for establishing circuit connections over local area networks with frequency selective impairments'20087,376,075'Circular constellations with coherent gain/differential phase and pilots'20087,257,165'Method and apparatus for preamble detection and time synchronization estimation in OFDM communication systems'20076,854,059'Method and apparatus for medium access control in powerline communication network systems'20056,370,135'Continuous CDPD base station and method of facilitating efficient data transfer'20026,188,903'Method and apparatus for frequency reuse in cellular communication systems'20016,122,527'Cellular digital packet data mobile data base station'20006,058,289'Method and apparatus for low power mobile unit for cellular communications system'20006,038,455'Reverse channel reuse scheme in a time shared cellular communication system'20005,946,624'Synchronized frequency hopping'19995,819,182'Method and apparatus for improving receiver performance in a land mobile communications system'19985,729,557'Cellular communication system with multiple code rates'19985,627,499'Digital modulator and upconverter having single-bit delta-sigma data converters'19975,544,222'Cellular digtial packet data mobile data base station'19965,533,029'Cellular digital packet data mobile data base station'19965,517,530'Method and apparatus for dual demodulation of mobile channel signals'19965,511,098'Digital methods and apparatus reverse link signal detection and recovery in a mobile data base station'19965,504,786'Open loop phase estimation methods and apparatus for coherent combining of signals using spatially diverse antennas in mobile channels'19965,473,637'Open-loop phase estimation methods and apparatus for coherent demodulation of phase modulated carriers in mobile channels'19955,412,353'Phase-locked loop frequency modulation circuit for input modulation signals having low-frequency content'19954,879,720'Decoder ring system'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2011Based in San Diego, CA, US· patent location history
1995–2000Patents assigned to PACIFIC COMM SCIENCES INC (11)· patent assignee history
2000–2002Patents assigned to CIRRUS LOGIC INC (3)· patent assignee history
2000Patents assigned to ADC TELECOMMUNCATIONS INC (1)· patent assignee history
2005–2010Patents assigned to CONEXANT SYSTEMS INC (5)· patent assignee history
2010Patents assigned to COPPERGATE COMM LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PACIFIC COMM SCIENCES INC | 11 | 1995–2000 |
| CONEXANT SYSTEMS INC | 5 | 2005–2010 |
| CIRRUS LOGIC INC | 3 | 2000–2002 |
| ADC TELECOMMUNCATIONS INC | 1 | 2000 |
| COPPERGATE COMM LTD | 1 | 2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Diego, California, US | 25 | 1989–2011 |