Inventor · disambiguated record
Kazuyuki Iijima
Also filed as: IIJIMA KAZUYUKI
18 granted patents·1 pending application·951 citations·filing 1996–2012
96Inventor score
Top patents by PatentIndex Score
19 records- 0190US6018707AVector quantization method, speech encoding method and apparatusSONY CORP·Filed 1997·Granted Jan 25, 2000·83 cites·16 claims
- 0286US5819212AVoice encoding method and apparatus using modified discrete cosine transformSONY CORP·Filed 1996·Granted Oct 6, 1998·130 cites·10 claims
- 0384US6611800B1Vector quantization method and speech encoding method and apparatusSONY CORP·Filed 1997·Granted Aug 26, 2003·114 cites·7 claims
- 0482US7139642B2Robot system and robot apparatus control methodSONY CORP·Filed 2002·Granted Nov 21, 2006·44 cites·12 claims
- 0580US5909663ASpeech decoding method and apparatus for selecting random noise codevectors as excitation signals for an unvoiced speech frameSONY CORP·Filed 1997·Granted Jun 1, 1999·94 cites·11 claims
- 0676US5828996AApparatus and method for encoding/decoding a speech signal using adaptively changing codebook vectorsSONY CORP·Filed 1996·Granted Oct 27, 1998·80 cites·5 claims
- 0770US7454330B1Method and apparatus for speech encoding and decoding by sinusoidal analysis and waveform encoding with phase reproducibilitySONY CORP·Filed 1996·Granted Nov 18, 2008·60 cites·28 claims
- 0870US5752222ASpeech decoding method and apparatusSONY CORP·Filed 1996·Granted May 12, 1998·60 cites·12 claims
- 0968US5873059AMethod and apparatus for decoding and changing the pitch of an encoded speech signalSONY CORP·Filed 1996·Granted Feb 16, 1999·57 cites·9 claims
- 1062US5848387APerceptual speech coding using prediction residuals, having harmonic magnitude codebook for voiced and waveform codebook for unvoiced framesSONY CORP·Filed 1996·Granted Dec 8, 1998·45 cites·8 claims
- 1155US6243672B1Speech encoding/decoding method and apparatus using a pitch reliability measureSONY CORP·Filed 1997·Granted Jun 5, 2001·33 cites·5 claims
- 1254US6047253AMethod and apparatus for encoding/decoding voiced speech based on pitch intensity of input speech signalSONY CORP·Filed 1997·Granted Apr 4, 2000·30 cites·12 claims
- 1349US6012023APitch detection method and apparatus uses voiced/unvoiced decision in a frame other than the current frame of a speech signalSONY CORP·Filed 1997·Granted Jan 4, 2000·24 cites·7 claims
- 1447US6108621ASpeech analysis method and speech encoding method and apparatusSONY CORP·Filed 1997·Granted Aug 22, 2000·23 cites·14 claims
- 1547US5930747APitch extraction method and device utilizing autocorrelation of a plurality of frequency bandsSONY CORP·Filed 1997·Granted Jul 27, 1999·23 cites·20 claims
- 1645US6532443B1Reduced length infinite impulse response weightingSONY CORP·Filed 1997·Granted Mar 11, 2003·20 cites·6 claims
- 1744US5899966ASpeech decoding method and apparatus to control the reproduction speed by changing the number of transform coefficientsSONY CORP·Filed 1996·Granted May 4, 1999·19 cites·11 claims
- 1839US6023671AVoiced/unvoiced decision using a plurality of sigmoid-transformed parameters for speech codingSONY CORP·Filed 1997·Granted Feb 8, 2000·12 cites·8 claims
- 1933US2015106732A1Content delivery system, content delivery apparatus, and content delivery methodCLUSTER GLOBAL CORP G·Filed 2012·Application pending·0 cites
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