ES2143396A1 - Monolithic codec-encrypter low rate integrated circuit for voice signals - Google Patents

Monolithic codec-encrypter low rate integrated circuit for voice signals

Info

Publication number
ES2143396A1
ES2143396A1 ES009800213A ES9800213A ES2143396A1 ES 2143396 A1 ES2143396 A1 ES 2143396A1 ES 009800213 A ES009800213 A ES 009800213A ES 9800213 A ES9800213 A ES 9800213A ES 2143396 A1 ES2143396 A1 ES 2143396A1
Authority
ES
Spain
Prior art keywords
module
encrypter
codec
monolithic
integrated circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
ES009800213A
Other languages
Spanish (es)
Other versions
ES2143396B1 (en
Inventor
Gomez Francisco J Rios
Sanchez Jorge Romero
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universidad de Malaga
Original Assignee
Universidad de Malaga
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Universidad de Malaga filed Critical Universidad de Malaga
Priority to ES9800213A priority Critical patent/ES2143396B1/en
Publication of ES2143396A1 publication Critical patent/ES2143396A1/en
Application granted granted Critical
Publication of ES2143396B1 publication Critical patent/ES2143396B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

Monolithic codec-encrypter low rate integrated circuit for voice signals which incorporates a vocoder and an encrypter-decoder, consisting of the following functional modules: Preemphasis module a, window module b, autocorrelation module c, module to calculate the linear prediction factors of the filter d, pitch detector and voice/no voice decision module e, quantifier module f, encrypter module g, decoder module h, frame decoder module i, scaling module j, residual generator module k, gain module l, all-pole filter module m, deemphasis module n, transmission module o and reception module p.
ES9800213A 1998-02-04 1998-02-04 LOW RATE MONOLITHIC CODEC-ENCRYPTOR MONOLITHIC CIRCUIT FOR VOICE SIGNALS. Expired - Fee Related ES2143396B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9800213A ES2143396B1 (en) 1998-02-04 1998-02-04 LOW RATE MONOLITHIC CODEC-ENCRYPTOR MONOLITHIC CIRCUIT FOR VOICE SIGNALS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9800213A ES2143396B1 (en) 1998-02-04 1998-02-04 LOW RATE MONOLITHIC CODEC-ENCRYPTOR MONOLITHIC CIRCUIT FOR VOICE SIGNALS.

Publications (2)

Publication Number Publication Date
ES2143396A1 true ES2143396A1 (en) 2000-05-01
ES2143396B1 ES2143396B1 (en) 2000-12-16

Family

ID=8302634

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9800213A Expired - Fee Related ES2143396B1 (en) 1998-02-04 1998-02-04 LOW RATE MONOLITHIC CODEC-ENCRYPTOR MONOLITHIC CIRCUIT FOR VOICE SIGNALS.

Country Status (1)

Country Link
ES (1) ES2143396B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003917A1 (en) * 1982-04-29 1983-11-10 Massachusetts Institute Of Technology Voice encoder and synthesizer
WO1986002726A1 (en) * 1984-11-01 1986-05-09 M/A-Com Government Systems, Inc. Relp vocoder implemented in digital signal processors
EP0712213A2 (en) * 1994-11-01 1996-05-15 Motorola, Inc. An integrated circuit that performs multiple communication tasks

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003917A1 (en) * 1982-04-29 1983-11-10 Massachusetts Institute Of Technology Voice encoder and synthesizer
WO1986002726A1 (en) * 1984-11-01 1986-05-09 M/A-Com Government Systems, Inc. Relp vocoder implemented in digital signal processors
EP0712213A2 (en) * 1994-11-01 1996-05-15 Motorola, Inc. An integrated circuit that performs multiple communication tasks

Also Published As

Publication number Publication date
ES2143396B1 (en) 2000-12-16

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