Inventor
Sandeep Chennakeshu
Inventor
Cary, NC, US
Overview
Patents· 86 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 communication24%
H04BTransmission23%
H04WWireless communication networks13%
G01SRadio direction-finding6%
H03MCoding4%
Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use4%
H04JMultiplex communication3%
G06FElectric digital data processing2%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes2%
G01FMeasuring volume, volume flow, mass flow or liquid level2%
PatentTitleYear
11,100,194Method and system for cargo sensing estimation202111,064,331Establishing machine type communications202110,769,576Method and system for cargo load detection202010,757,644Method and apparatus for multi-sim selection202010,642,332Triggering transition of a device between states202010,571,272Mobile transceiver with adaptive monitoring and reporting202010,551,407Determining an open/close status of a barrier202010,302,478Method and system for cargo load detection201910,228,488Determining a load status of a platform201910,231,178Method and apparatus for multi-SIM selection201910,142,819Establishing machine type communications201810,126,805Triggering transition of a device between states20189,877,275Method and apparatus for multi-SIM selection20187,269,846'Mobile terminal having virus resistant security module architecture'20077,241,179'Universal audio jack and plug'20077,099,410'Reduced complexity MLSE equalizer for M-ary modulated signals'20066,975,582'Dual mode satellite/cellular terminal'20056,839,378'Method and apparatus for multipath delay estimation in direct sequence spread spectrum communication systems'20056,768,913'Method and apparatus for performing beam searching in a radio communication system'20046,694,154'Method and apparatus for performing beam searching in a radio communication system'20046,580,930'Signal detector selector and method for selecting a detector'20036,563,861'Doppler spread estimation system'20036,535,547'Random access in a mobile telecommunications system'20036,532,374'Distributed radio telephone for use in a vehicle'20036,493,322'Satellite diversity scheme'20026,483,828'System and method for coding in a telecommunications environment using orthogonal and near-orthogonal codes'20026,415,154'METHOD AND APPARATUS FOR COMMUNICATING AUXILLIARY INFORMATION AND LOCATION INFORMATION BETWEEN A CELLULAR TELEPHONE NETWORK AND A GLOBAL POSITIONING SYSTEM RECEIVER FOR REDUCING CODE SHIFT SEARCH TIME OF THE RECEIVER'20026,414,945'High power short message service using TDMA frames and/or broadcast control channel'20026,335,954'Method and apparatus for joint synchronization of multiple receive channels'20026,327,317'Combined equalization and decoding techniques'20016,314,081'High power short message service using dedicated carrier frequency'20016,226,507'Apparatus and method for selecting between a plurality of antennas utilized by a microcellular communications terminal for reception of a signal'20016,212,368'Measurement techniques for diversity and inter-frequency mobile assisted handoff (MAHO)'20016,192,503'Communications system and methods employing selective recursive decording'20016,137,843'Methods and apparatus for canceling adjacent channel signals in digital communications systems'20006,134,286'Synchronization techniques and systems for radiocommunication'20006,134,260'Method and apparatus for frequency acquisition and tracking for DS-SS CDMA receivers'20006,108,517'Methods and apparatus for joint demodulation of adjacent channel signals in digital communications systems'20006,091,936'Method and apparatus for reducing co-channel interference'20006,085,103'Compensating for fading in analog AM radio signals'20006,046,990'High-penetration transmission method for a radiocommunication system'20006,034,987'System for improving the quality of a received radio signal'20006,035,178'Satellite communication system for local-area coverage'20006,031,913'Apparatus and method for secure communication based on channel characteristics'20006,031,874'Unequal error protection in coded modulation schemes'20006,005,887'Despreading of direct sequence spread spectrum communications signals'19995,995,533'Apparatus and method for generating pseudorandom quantities based upon radio channel characteristics'19995,991,331'System for improving the quality of a received radio signal'19995,968,199'High performance error control decoder'19995,933,763'Circuitry and method for improved signal reception acknowledgment in a radio communication system'19995,930,718'Apparatus and method for transmitting and receiving a signaling message in a communication system'19995,918,174'Circuitry and method for initiating communication between communication stations of a radio communication system'19995,909,465'Method and apparatus for bidirectional demodulation of digitally modulated signals'19995,905,742'Method and apparauts for symbol decoding'19995,838,267'Method and apparatus for encoding and decoding digital information'19985,835,480'Circuitry and method for simultaneously transmitting voice and data information'19985,822,310'High power short message service using broadcast control channel'19985,809,141'Method and apparatus for enabling mobile-to-mobile calls in a communication system'19985,752,204'Antenna assembly for radiotelephonic device'19985,745,578'Apparatus and method for secure communication based on channel characteristics'19985,691,980'Local communication network for power reduction and enhanced reliability in a multiple node tracking system'19975,661,724'Satellite diversity scheme'19975,604,806'Apparatus and method for secure radio communication'19975,577,068'Generalized direct update viterbi equalizer'19965,488,635'Low complexity adaptive equalizer radio receiver employing reduced complexity branch metric calculation'19965,467,374'Low complexity adaptive equalizer for U.S. digital cellular radio receivers'19955,465,271'Post detection weighted vector combining diversity receivers using phase metrics for mobile and indoor radio channels'19955,406,593'Adaptive phase-locked loop employing channel state information estimation from received signal phase angles'19955,400,362'Double sided slot traversing decoding for time division multiple access (TDMA) radio systems'19955,371,471'Low complexity adaptive equalizer radio receiver employing direct reference state updates'19945,363,407'Transmitter optimization for spectrally congested radio communication systems'19945,353,307'Automatic simulcast alignment'19945,351,274'Post detection selection combining diversity receivers for mobile and indoor radio channels'19945,349,589'Generalized viterbi algorithm with tail-biting'19945,343,498'Sample timing selection and frequency offset correction for U.S. digital cellular mobile receivers'19945,335,250'Method and apparatus for bidirectional demodulation of digitally modulated signals'19945,311,553'Trellis coding technique to increase adjacent channel interference protection ratio in land mobile radio systems under peak power constraints'19945,311,552'Trellis coding technique to improve adjacent channel interference protection ratio in land mobile radio systems'19945,285,480'Adaptive MLSE-VA receiver for digital cellular radio'19945,283,815'Tangental type differential detector for pulse shaped PI/4 shifted differentially encoded quadrature phase shift keying'19945,283,811'Decision feedback equalization for digital cellular radio'19945,249,205'Order recursive lattice decision feedback equalization for digital cellular radio'19935,202,901'Digital discriminator for pulse shaped .pi./4 shifted differentially encoded quadrature phase shift keying'19935,177,740'Frame/slot synchronization for U.S. digital cellular TDMA radio telephone system'19935,151,926'Sample timing and carrier frequency estimation circuit for sine-cosine detectors'19925,020,056'Reduction of synchronous fading effects by time hopping of user slots in TDMA frames'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1997Patents assigned to GEN ELECTRIC (21)· patent assignee history
1991–1994Based in Clifton Park, NY, US· patent location history
1994–1996Patents assigned to ERICSSON GE MOBILE COMMUNICAT (3)· patent assignee history
1994–2007Based in Cary, NC, US· patent location history
1994–1996Based in Schenectady, NY, US· patent location history
1997–1999Patents assigned to ERICSSON GE MOBILE INC (11)· patent assignee history
1999–2006Patents assigned to ERICSSON INC (32)· patent assignee history
2007Based in Malmo, SE· patent location history
2018–2021Patents assigned to BLACKBERRY LTD (13)· patent assignee history
2018–2021Based in Austin, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ERICSSON INC | 32 | 1999–2006 |
| GEN ELECTRIC | 21 | 1991–1997 |
| BLACKBERRY LTD | 13 | 2018–2021 |
| ERICSSON GE MOBILE INC | 11 | 1997–1999 |
| ERICSSON GE MOBILE COMMUNICAT | 3 | 1994–1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cary, NC, US | 52 | 1994–2007 |
| Austin, Texas, US | 13 | 2018–2021 |
| Schenectady, New York, US | 11 | 1994–1996 |
| Clifton Park, New York, US | 9 | 1991–1994 |
| Malmo, SE | 1 | 2007 |