Assignee
SIP
IT·28 granted patents·688 citations·filing 1981–1996
Top patents by PatentIndex Score
28 records- 0185US5661728ADecoder for audio signals of compressed and coded audiovisual streamsSIP·Filed 1995·Granted Aug 26, 1997·124 cites·4 claims
- 0282US5047076AMethod of fabricating optical fibres by solution-dopingSIP·Filed 1989·Granted Sep 10, 1991·34 cites·17 claims
- 0376US5353373ASystem for embedded coding of speech signalsSIP·Filed 1991·Granted Oct 4, 1994·79 cites·2 claims
- 0475US5321793ALow-delay audio signal coder, using analysis-by-synthesis techniquesSIP·Filed 1993·Granted Jun 14, 1994·82 cites·13 claims
- 0571US5684804ADevice for transmitting, receiving and decoding compressed audiovisual streamsSIP·Filed 1995·Granted Nov 4, 1997·57 cites·16 claims
- 0667US5548680AMethod and device for speech signal pitch period estimation and classification in digital speech codersSIP·Filed 1994·Granted Aug 20, 1996·60 cites·13 claims
- 0764US4580275AAdaptive equalizer for binary signals and method of operating sameSIP·Filed 1984·Granted Apr 1, 1986·26 cites·6 claims
- 0862US4399332AProgrammable traffic-measuring unit for telecommunication systemSIP·Filed 1981·Granted Aug 16, 1983·23 cites·12 claims
- 0961US4498062AWaveguide structure for separating microwaves with mutually orthogonal planes of polarizationSIP·Filed 1983·Granted Feb 5, 1985·18 cites·12 claims
- 1058US4800423AInterface module for superimposing alphanumeric characters upon RGB video signalsSIP·Filed 1987·Granted Jan 24, 1989·23 cites·6 claims
- 1155US5367372AMethod of and apparatus for measuring the geometric characteristics of nominally cylindrical guiding structuresSIP·Filed 1992·Granted Nov 22, 1994·24 cites·10 claims
- 1243US5469527AMethod of and device for coding speech signals with analysis-by-synthesis techniquesSIP·Filed 1994·Granted Nov 21, 1995·17 cites·5 claims
- 1342US5519807AMethod of and device for quantizing excitation gains in speech coders based on analysis-synthesis techniquesSIP·Filed 1993·Granted May 21, 1996·18 cites·15 claims
- 1442US5197083AMultimedia protocol interface for 64 kbit/s data flowSIP·Filed 1990·Granted Mar 23, 1993·14 cites·15 claims
- 1541US5319447AVideo control circuit for multimedia applications with video signal synchronizer memorySIP·Filed 1993·Granted Jun 7, 1994·11 cites·8 claims
- 1639US5309449AElectronic circuit for generating error detection codes for digital signalsSIP·Filed 1991·Granted May 3, 1994·9 cites·3 claims
- 1739US4819080AInstrument for measuring the phase jitter of analog signalsSIP·Filed 1988·Granted Apr 4, 1989·10 cites·3 claims
- 1838US5644391AMethod of and device for determining the polymerization profile of a polymeric layerSIP·Filed 1996·Granted Jul 1, 1997·6 cites·10 claims
- 1936US4675885ADigital circuit for extracting synchronism signals from a serial flow of coded dataSIP·Filed 1985·Granted Jun 23, 1987·9 cites·20 claims
- 2036US4660078ACoder-decoder for transmission and/or reception of television pictures via digital low-speed channelSIP·Filed 1984·Granted Apr 21, 1987·6 cites·10 claims
- 2134US5546498AMethod of and device for quantizing spectral parameters in digital speech codersSIP·Filed 1994·Granted Aug 13, 1996·9 cites·11 claims
- 2234US5010253ADetection system for cathodoluminescence analysisSIP·Filed 1989·Granted Apr 23, 1991·8 cites·7 claims
- 2334US4991791AExpansible reel for tests on filamentary material in particular optical fibresSIP·Filed 1989·Granted Feb 12, 1991·3 cites·12 claims
- 2429US4755984AEcho canceller for bidirectional digital transmissionSIP·Filed 1987·Granted Jul 5, 1988·7 cites·6 claims
- 2529US4533868AElectronic instrument for measuring the overall phase and amplitude distortion of a transmission channelSIP·Filed 1982·Granted Aug 6, 1985·3 cites·11 claims
- 2627US5640197APeripheral unit for satelite multi-videoconferencingSIP·Filed 1995·Granted Jun 17, 1997·3 cites·5 claims
- 2725US4713803ABidirectional digital transmission system with echo-cancellationSIP·Filed 1986·Granted Dec 15, 1987·3 cites·5 claims
- 2819US4723240APCM-frame synchronizing unitSIP·Filed 1987·Granted Feb 2, 1988·2 cites·4 claims
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