LexDanaLexDanabeta
Inventor

Rajaram Ramesh

Inventor
Cary, NC, US

Overview

133→
Patents
1994–2018
Patent span
Electricity
Primary field (CPC H)

Patents· 133 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 communication32%
H04BTransmission21%
H04WWireless communication networks19%
H03MCoding5%
C07CAcyclic or carbocyclic compounds4%
Y02PClimate change mitigation technologies in the production or processing of goods4%
C07DHeterocyclic compounds3%
G01SRadio direction-finding3%
H04JMultiplex communication2%
H01QAntennas, i.e. radio aerials1%
PatentTitleYear
9,894,650'Semi-persistent resource allocation method for uplink transmission in wireless packet data systems'20189,732,011'Integrated process for the preparation of olefins'20179,197,246'Iterative decoding of blocks with cyclic redundancy checks'20159,130,706'Method and apparatus for signal quality loss compensation in multiplexing transmission systems'20159,071,419'Semi-persistent resource allocation method for uplink transmission in wireless packet data systems'20159,067,860'Process for converting an alkyl tert-alkyl ether into an alkanol and an iso-alkane'20158,946,496'Process for preparing lower olefins from an oxygenate'20158,889,941'Process for preparing lower olefins from an oxygenate'20148,861,549'Multiple compatible OFDM systems with different bandwidths'20148,855,086'Method and apparatus for efficient multimedia delivery in a wireless packet network'20148,822,709'Process for preparing an epoxide from an oxygenate'20148,822,710'Process for preparing an epoxide from an oxygenate'20148,811,352'Method and apparatus for channel estimation in a transmit diversity environment'20148,811,331'Pilot design using costas arrays'20148,804,615'Quick paging in telecommunication systems'20148,779,226'Process for preparing ethylene and propylene'20148,754,280'Method for start-up of an oxygenate-to-olefin process'20148,750,240'System, method, and apparatus for improved space-time coding and dynamic switching with advanced receivers'20148,742,188'Process for preparing ethylene and/or propylene and an iso-olefin-depleted olefinic product'20148,726,137'Encoding and decoding methods for expurgated convolutional codes and convolutional turbo codes'20148,704,027'Process for preparing ethylene and propylene'20148,649,327'Semi-persistent resource allocation method for uplink transmission in wireless packet data systems'20148,538,464'Code word assignment methods for quick paging in telecommunication systems'20138,527,843'Iterative decoding of blocks with cyclic redundancy checks'20138,526,305'System and methods for reducing power consumed by a base station'20138,447,321'System and method for locating a wireless local area network'20138,331,272'Aggregation of resources over multiple frames in a TDD communication system'20128,259,827'Quick paging receivers in telecommunication systems'20128,244,305'Efficient, secure digital wireless voice telephony via selective encryption'20128,233,428'Using a synchronization channel to send quick paging signals'20128,223,896'Soft bit value generation in a sequence estimator'20128,155,247'Message decoding with a priori information and soft combining'20128,155,090'Method and apparatus for efficient multimedia delivery in a wireless packet network'20128,155,701'Uplink radio frames apportioned for plural multiple access technologies'20128,144,720'Uplink radio resource allocation in the presence of power limited users'20128,098,623'Telecommunications frame structure accomodating differing formats'20128,031,656'Semi-persistent resource allocation method for uplink transmission in wireless packet data systems'20117,978,788'Method and arrangement for estimating DC offset'20117,899,015'Method and apparatus for resource reuse in a communication system'20117,885,619'Diversity transmission using a single power amplifier'20117,848,460'Interference suppression method and apparatus'20107,796,698'Interference suppression in a multicarrier receiver'20107,773,950'Benign interference suppression for received signal quality estimation'20107,751,838'Method and mobile station for synchronizing to a common synchronization channel and obtaining a channel estimate'20107,720,164'Transmission scheme for uplink access in a FDMA system'20107,672,667'Broadcast-centric cellular communication system'20107,558,533'Parameter estimate initialization using interpolation'20097,440,755'System and method for locating a wireless local area network'20087,376,192'Delta modulation for channel feedback in transmit diversity wireless communication systems'20087,366,475'Signal strength measurements in cellular telecommunication systems'20087,321,646'Methods and apparatus for pre-filtering a signal to increase signal-to-noise ratio and decorrelate noise'20087,274,935'Method and base station controller for handover of simultaneous voice and data sessions'20077,251,770'Method and apparatus for decoding of turbo encoded data in a communication system'20077,221,958'Received signal filtering for enhanced selectivity'20077,194,000'Methods and systems for provision of streaming data services in an internet protocol network'20077,142,580'Systems, methods, and computer program products for providing traffic frequency diversification in a cellular communication system'20067,133,476'Apparatus and methods for suppression of interference among disparately-modulated signals'20067,088,978'System and method for interference cancellation in a wireless communication receiver'20066,917,629'Rate detection in radio communication systems'20056,909,758'Systems and methods for decoding data blocks'20056,891,883'Delay searcher and delay trackers interaction for new delays assignment to rake fingers'20056,853,633'Methods of providing signal parameter information using delta-modulation and related systems and terminals'20056,839,378'Method and apparatus for multipath delay estimation in direct sequence spread spectrum communication systems'20056,826,394'Interaction between an adjunct positioning system and a radiocommunication system'20046,801,931'System and method for personalizing electronic mail messages by rendering the messages in the voice of a predetermined speaker'20046,795,428'Fast notification access channel for realtime users in EGPRS networks'20046,778,838'Phase null mitigation method'20046,775,340'Synchronization and channel estimation with extended pilot symbols'20046,731,619'Method and system for using one type of transmit diversity in a first time slot and a second type in an adjacent time slot'20046,707,849'Methods, receivers and equalizers having increased computational efficiency'20046,658,050'Channel estimates in a CDMA system using power control bits'20036,636,740'Apparatus and methods for position computation based on broadcast initialization data'20036,628,945'Apparatus and methods for high-penetration random access in wireless communications systems'20036,625,435'Frequency synthesis using a programmable offset synthesizer'20036,621,858'Flexible sliding correlator for direct sequence spread spectrum systems'20036,606,363'Method and apparatus for estimating a frequency offset by combining pilot symbols and data symbols'20036,603,827'Method and apparatus for digital symbol detection using medium response estimates'20036,590,932'Methods, receiver devices and systems for whitening a signal disturbance in a communication signal'20036,567,475'Method and system for the transmission, reception and processing of 4-level and 8-level signaling symbols'20036,560,273'Delay searcher and delay trackers interaction for new delays assignment to rake fingers'20036,518,921'Cellular positioning system that compensates for received signal delays in positioning radio receivers'20036,519,300'System and method for automatic frequency correction in a pilot symbol assisted demodulator'20036,493,322'Satellite diversity scheme'20026,487,255'Information generation for coherent demodulation of differentially encoded signals'20026,483,828'System and method for coding in a telecommunications environment using orthogonal and near-orthogonal codes'20026,463,105'Methods and systems for estimation of the carrier to interference ratio for a wireless communication channel'20026,449,464'Method of reporting signal quality measurements from a mobile terminal with enhanced demodulation algorithm'20026,426,978'Digital communication systems and methods for differential and/or amplitude encoding and decoding secondary symbols'20026,411,649'Adaptive channel tracking using pilot sequences'20026,389,295'Communications apparatus and methods for adaptive signal processing based on mobility characteristics'20026,381,290'Mobile unit for pilot symbol assisted wireless system and method of improving performance thereof'20026,374,098'Systems and methods for locating remote units operating in a radiocommunication system using an adjunct system'20026,363,105'Flexible sliding correlator for direct sequence spread spectrum systems'20026,275,538'Technique for finding a starting state for a convolutional feedback encoder'20016,266,534'Systems and methods for locating remote terminals in radiocommunication systems'20016,252,918'Method and apparatus for digital symbol detection using medium response estimates'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)'20016,198,775'Transmit diversity method, systems, and terminals using scramble coding'20016,195,399'Method and apparatus for converting a wideband if signal to a complex (quadrature) baseband signal'20016,157,820'Pilot strength measurement and multipath delay searcher for CDMA receiver'20006,151,484'Communications apparatus and methods for adaptive signal processing based on mobility characteristics'20006,147,982'System and method for synchronizing acquisition for a code modulated communication system'20006,137,843'Methods and apparatus for canceling adjacent channel signals in digital communications systems'20006,131,180'Trellis coded modulation system'20006,115,596'Systems and methods for handling emergency calls in hierarchical cell structures'20006,084,929'Method and apparatus for channel tracking'20006,085,103'Compensating for fading in analog AM radio signals'20006,078,626'Methods and systems for communicating information using separable modulation constellations'20006,070,078'Reduced global positioning system receiver code shift search space for a cellular telephone system'20006,040,800'Systems and methods for locating remote terminals in radiocommunication systems'20006,035,007'Effective bypass of error control decoder in a digital radio system'20006,028,538'Method, keyboard and system for transmitting key characters'20006,005,887'Despreading of direct sequence spread spectrum communications signals'19995,968,198'Decoder utilizing soft information output to minimize error rates'19995,946,625'Method for improving co-channel interference in a cellular system'19995,943,324'Methods and apparatus for mobile station to mobile station communications in a mobile satellite communication system'19995,936,978'Shortened fire code error-trapping decoding method and apparatus'19995,910,182'Data communications systems and methods using interspersed error detection bits'19995,907,809'Position determination using multiple base station signals'19995,905,743'Apparatus, methods and computer program products for sequential maximum likelihood estimating communications signals using whitening path metrics'19995,889,827'Method and apparatus for digital symbol detection using medium response estimates'19995,870,406'Automatic repeat request(ARQ) data communications method and apparatus'19995,838,739'Channel estimator circuitry, and associated method, for a digital communication system'19985,809,141'Method and apparatus for enabling mobile-to-mobile calls in a communication system'19985,796,780'Coherent modulation of CPM signals'19985,796,726'Systems and methods for random access in time division multiple access satellite radiotelephone communications'19985,668,820'Digital communication system having a punctured convolutional coding system and method'19975,661,724'Satellite diversity scheme'19975,642,384'Trellis coded modulation scheme with low envelope variation for mobile radio by constraining a maximum modulus of a differential phase angle'19975,600,676'Modulation scheme with low envelope variation for mobile radio by constraining a maximum modulus of a differential phase angle'19975,363,407'Transmitter optimization for spectrally congested radio communication systems'19945,311,553'Trellis coding technique to increase adjacent channel interference protection ratio in land mobile radio systems under peak power constraints'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–1997Based in Schenectady, NY, US· patent location history
1997–2015Based in Cary, NC, US· patent location history
1999–2007Patents assigned to ERICSSON INC (60)· patent assignee history
1999–2018Patents assigned to ERICSSON TELEFON AB L M (46)· patent assignee history
2010–2018Based in Raleigh, NC, US· patent location history
2012–2015Patents assigned to RAMESH RAJARAM (24)· patent assignee history
2012–2014Patents assigned to BALACHANDRAN KUMAR (21)· patent assignee history
2012–2014Patents assigned to KOORAPATY HAVISH (19)· patent assignee history
2014–2015Based in Amsterdam, NL· patent location history
2014–2015Based in Amserdam, NL· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ERICSSON INC601999–2007
ERICSSON TELEFON AB L M461999–2018
RAMESH RAJARAMself242012–2015
BALACHANDRAN KUMAR212012–2014
KOORAPATY HAVISH192012–2014
Locations
LocationPatentsSpan
Cary, NC, US901997–2015
Raleigh, NC, US272010–2018
Amsterdam, NL62014–2015
Schenectady, New York, US41994–1997
Amserdam, NL32014–2015