Determining linear predictive coding filter parameters for encoding a voice signal

Abstract

Linear predictive coding (LPC) filter parameters are determined for use in encoding a voice signal. Samples of a speech signal using a z-transform function are pre-emphasized. The pre-emphasized samples are analyzed to produce LPC reflection coefficients. The LPC reflection coefficients are quantized by a voiced quantizer and by an unvoiced quantizer producing sets of quantized reflection coefficients. Each set is converted into respective spectral coefficients. The set which produces a smaller lag-spectral distance is determined. The determined set is selected to encode the voice signal.

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Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Information	Explicitly Disclosed	Patent Type
2G	19/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 106 90 Version No: ---- Illustrative part: ---- Release: ---- + -	No	Family Member
2G	19/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 106 90 Version No: ---- Illustrative part: ---- Release: ---- + -	Yes	Basis Patent
2G	14/09/2009	ISLD-200911-005	INTERDIGITAL INC	S1 TS Number: TS 106 90 v7.2.0 Version No: v7.2.0 Illustrative part: 8.4 Release: 7 S2 TS Number: TS 106 90 v7.2.0 Version No: v7.2.0 Illustrative part: 3.2 Release: 7 S3 TS Number: TS 106 90 v7.2.0 Version No: v7.2.0 Illustrative part: 5.2 Release: 7 S4 TS Number: TS 106 90 v7.2.0 Version No: v7.2.0 Illustrative part: 5.2.3 Release: 7 S5 TS Number: TS 106 90 v7.2.0 Version No: v7.2.0 Illustrative part: 8.4 Release: 7 S6 TS Number: TS 106 90 v7.2.0 Version No: v7.2.0 Illustrative part: 4.3 Release: 7 S7 TS Number: TS 106 90 v7.2.0 Version No: v7.2.0 Illustrative part: 5.2.4 Release: 7 +6 -6	No	Family Member
2G	14/09/2009	ISLD-200911-005	INTERDIGITAL INC	S1 TS Number: TS 106 90 v7.2.0 Version No: v7.2.0 Illustrative part: 5.2 Release: 7 + -	Yes	Basis Patent

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Publication No	Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Information	Explicitly Disclosed	Patent Type
US2002123884A1	2G	19/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 106 90 Version No: -- Section No: -- Release : -- + -	Yes	Basis Patent
US2002123884A1	2G	19/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 106 90 Version No: -- Section No: -- Release : -- + -	No	Family Member
US2002123884A1	2G	14/09/2009	ISLD-200911-005	INTERDIGITAL INC	S1 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : + -	Yes	Basis Patent
US2002123884A1	2G	14/09/2009	ISLD-200911-005	INTERDIGITAL INC	S1 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S2 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S3 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S4 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S5 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S6 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S7 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : +6 -6	No	Family Member
US6611799B2	2G	19/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 106 90 Version No: -- Section No: -- Release : -- + -	Yes	Basis Patent
US6611799B2	2G	19/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 106 90 Version No: -- Section No: -- Release : -- + -	No	Family Member
US6611799B2	2G	14/09/2009	ISLD-200911-005	INTERDIGITAL INC	S1 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : + -	Yes	Basis Patent
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US6782359B2	2G	19/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 106 90 Version No: -- Section No: -- Release : -- + -	No	Family Member
US6782359B2	2G	14/09/2009	ISLD-200911-005	INTERDIGITAL INC	S1 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : + -	Yes	Basis Patent
US6782359B2	2G	14/09/2009	ISLD-200911-005	INTERDIGITAL INC	S1 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S2 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S3 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S4 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S5 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S6 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S7 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : +6 -6	No	Family Member
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US2005021329A1	2G	19/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 106 90 Version No: -- Section No: -- Release : -- + -	No	Family Member
US2005021329A1	2G	14/09/2009	ISLD-200911-005	INTERDIGITAL INC	S1 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : + -	Yes	Basis Patent
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US6385577B2	2G	14/09/2009	ISLD-200911-005	INTERDIGITAL INC	S1 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : + -	Yes	Basis Patent
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US2006143003A1	2G	14/09/2009	ISLD-200911-005	INTERDIGITAL INC	S1 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S2 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S3 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S4 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S5 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S6 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S7 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : +6 -6	No	Family Member
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US7599832B2	2G	19/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 106 90 Version No: -- Section No: -- Release : -- + -	No	Family Member
US7599832B2	2G	14/09/2009	ISLD-200911-005	INTERDIGITAL INC	S1 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : + -	Yes	Basis Patent
US7599832B2	2G	14/09/2009	ISLD-200911-005	INTERDIGITAL INC	S1 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S2 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S3 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S4 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S5 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S6 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S7 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : +6 -6	No	Family Member
US2010023326A1	2G	19/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 106 90 Version No: -- Section No: -- Release : -- + -	No	Family Member
US2010023326A1	2G	14/09/2009	ISLD-200911-005	INTERDIGITAL INC	S1 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S2 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S3 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S4 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S5 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S6 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S7 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : S8 TS Number: TS 106 90 v7.2.0 Version No: Section No: -- Release : +7 -7	No	Family Member

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Determining linear predictive coding filter parameters for encoding a voice signal

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