Assignee
SIP
IT28 patents
Top patents by PatentIndex Score
US5661728AAug 26, 1997
Decoder for audio signals of compressed and coded audiovisual streams
SIP124 citations94
US5353373AOct 4, 1994
System for embedded coding of speech signals
SIP79 citations94
US5321793AJun 14, 1994
Low-delay audio signal coder, using analysis-by-synthesis techniques
SIP82 citations94
US5548680AAug 20, 1996
Method and device for speech signal pitch period estimation and classification in digital speech coders
SIP60 citations92
US5684804ANov 4, 1997
Device for transmitting, receiving and decoding compressed audiovisual streams
SIP57 citations91
US5047076ASep 10, 1991
Method of fabricating optical fibres by solution-doping
SIP34 citations88
US4580275AApr 1, 1986
Adaptive equalizer for binary signals and method of operating same
SIP26 citations88
US5367372ANov 22, 1994
Method of and apparatus for measuring the geometric characteristics of nominally cylindrical guiding structures
SIP24 citations86
US5469527ANov 21, 1995
Method of and device for coding speech signals with analysis-by-synthesis techniques
SIP17 citations80
US4800423AJan 24, 1989
Interface module for superimposing alphanumeric characters upon RGB video signals
SIP23 citations75
US5546498AAug 13, 1996
Method of and device for quantizing spectral parameters in digital speech coders
SIP9 citations72
US5519807AMay 21, 1996
Method of and device for quantizing excitation gains in speech coders based on analysis-synthesis techniques
SIP18 citations71
US5309449AMay 3, 1994
Electronic circuit for generating error detection codes for digital signals
SIP9 citations71
US5197083AMar 23, 1993
Multimedia protocol interface for 64 kbit/s data flow
SIP14 citations71
US4399332AAug 16, 1983
Programmable traffic-measuring unit for telecommunication system
SIP23 citations69
US4675885AJun 23, 1987
Digital circuit for extracting synchronism signals from a serial flow of coded data
SIP9 citations68
US5319447AJun 7, 1994
Video control circuit for multimedia applications with video signal synchronizer memory
SIP11 citations67
US4498062AFeb 5, 1985
Waveguide structure for separating microwaves with mutually orthogonal planes of polarization
SIP18 citations67
US4819080AApr 4, 1989
Instrument for measuring the phase jitter of analog signals
SIP10 citations66
US5010253AApr 23, 1991
Detection system for cathodoluminescence analysis
SIP8 citations65
US4755984AJul 5, 1988
Echo canceller for bidirectional digital transmission
SIP7 citations63
US5644391AJul 1, 1997
Method of and device for determining the polymerization profile of a polymeric layer
SIP6 citations62
US4991791AFeb 12, 1991
Expansible reel for tests on filamentary material in particular optical fibres
SIP3 citations61
US5640197AJun 17, 1997
Peripheral unit for satelite multi-videoconferencing
SIP3 citations57
US4713803ADec 15, 1987
Bidirectional digital transmission system with echo-cancellation
SIP3 citations57
US4660078AApr 21, 1987
Coder-decoder for transmission and/or reception of television pictures via digital low-speed channel
SIP6 citations57
US4533868AAug 6, 1985
Electronic instrument for measuring the overall phase and amplitude distortion of a transmission channel
SIP3 citations57
US4723240AFeb 2, 1988
PCM-frame synchronizing unit
SIP2 citations50