ES2143396B1 - LOW RATE MONOLITHIC CODEC-ENCRYPTOR MONOLITHIC CIRCUIT FOR VOICE SIGNALS. - Google Patents
LOW RATE MONOLITHIC CODEC-ENCRYPTOR MONOLITHIC CIRCUIT FOR VOICE SIGNALS.Info
- Publication number
- ES2143396B1 ES2143396B1 ES9800213A ES9800213A ES2143396B1 ES 2143396 B1 ES2143396 B1 ES 2143396B1 ES 9800213 A ES9800213 A ES 9800213A ES 9800213 A ES9800213 A ES 9800213A ES 2143396 B1 ES2143396 B1 ES 2143396B1
- Authority
- ES
- Spain
- Prior art keywords
- module
- monolithic
- encryptor
- codec
- voice signals
- 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.)
- Expired - Fee Related
Links
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Circuito integrado monolítico codec-encriptador de baja tasa para señales de voz que incorpora un vocoder y un encriptador-descifrador compuesto por los siguientes módulos funcionales: Módulo de Preénfasis (a), Módulo de enventanado (b), Módulo de autocorrelación (c), Módulo de cálculo de los coeficientes de predicción lineal del filtro (d), Módulo Detector de Pitch y Decisión Voz - Novoz (e), Módulo Cuantificador (f), Módulo Encriptador (g), Módulo Descifrador (h), Módulo Descodificador de Trama (i), Módulo Escalador (j), Módulo Generador de Residuo (k), Módulo de Ganancia (1), Módulo Filtro Todo - Polos (m), Módulo de Deénfasis (n), Módulo de Transmisión (o) y Modulo de Recepción (p).Low-rate monolithic codec-encrypting circuit for voice signals that incorporates a vocoder and an encryptor-decryptor composed of the following functional modules: Pre-emphasis Module (a), Poisoning Module (b), Autocorrelation Module (c), Module for calculating the linear prediction coefficients of the filter (d), Pitch Detector Module and Voice Decision - Speaker (e), Quantizer Module (f), Encryption Module (g), Decoder Module (h), Frame Decoder Module (i), Scaler Module (j), Residue Generator Module (k), Gain Module (1), All-Pole Filter Module (m), De-Emphasis Module (n), Transmission Module (o) and Reception (p).
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 ES2143396A1 (en) | 2000-05-01 |
| ES2143396B1 true 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) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4710959A (en) * | 1982-04-29 | 1987-12-01 | 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 |
| US5621800A (en) * | 1994-11-01 | 1997-04-15 | Motorola, Inc. | Integrated circuit that performs multiple communication tasks |
-
1998
- 1998-02-04 ES ES9800213A patent/ES2143396B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2143396A1 (en) | 2000-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100346066B1 (en) | Method for coding an audio signal | |
| ES2380591T3 (en) | Information signal coding | |
| DE69521164T2 (en) | System for coding and decoding signals | |
| ES2226779T3 (en) | IMPROVEMENT OF PERCEPTIVE PERFORMANCE OF THE SBR AND HFR CODING METHODS RELATED THROUGH ADDITION OF ADAPTIVE FUND NOISE AND A LIMITATION OF NOISE REPLACEMENT. | |
| KR100397690B1 (en) | Data encoding device and method | |
| NO20071493L (en) | Individual channel formation for BCC methods and the like. | |
| US20010038643A1 (en) | Method for inserting auxiliary data in an audio data stream | |
| MX9602391A (en) | Method and apparatus for reproducing speech signals and method for transmitting same. | |
| KR950024443A (en) | Adaptive Digital Audio Coding Device | |
| CA2194419A1 (en) | Perceptual noise shaping in the time domain via lpc prediction in the frequency domain | |
| NO20012068L (en) | Device and method for perceptual weighing, for efficient coding of broadband signals | |
| ES2150313T3 (en) | PROCEDURE FOR SIGNALING A NOISE SUBSTITUTION IN THE CODING OF AN AUDIO SIGNAL. | |
| ES2142544T3 (en) | TONE FOR PERCEPTIVE AUDIO COMPRESSION BASED ON THE UNCERTAINTY OF SOUND VOLUME. | |
| KR20050074501A (en) | Music information encoding device and method, and music information decoding device and method | |
| ES2143396B1 (en) | LOW RATE MONOLITHIC CODEC-ENCRYPTOR MONOLITHIC CIRCUIT FOR VOICE SIGNALS. | |
| ES2156273T3 (en) | QUANTIFICATION OF SPECTRAL PARAMETERS FOR EFFECTIVE WORD CODING, USING A SCEDED PREDICTION MATRIX. | |
| Davidson et al. | High-quality audio transform coding at 128 kbits/s | |
| Crochiere et al. | Current perspectives in digital speech | |
| US5937378A (en) | Wideband speech coder and decoder that band divides an input speech signal and performs analysis on the band-divided speech signal | |
| KR960016631A (en) | Information encoding method and apparatus, Information decoding method and apparatus and recording medium | |
| IT1270439B (en) | PROCEDURE AND DEVICE FOR THE QUANTIZATION OF THE SPECTRAL PARAMETERS IN NUMERICAL CODES OF THE VOICE | |
| JPS60107933A (en) | Adpcm encoding device | |
| ES2067336T3 (en) | PROCESS TO DETERMINE THE GLOBAL CONTROL THRESHOLD DURING AN ORIGINAL LANGUAGE CODING WITH REDUCTION OF THE BIT RATE | |
| JP3338885B2 (en) | Audio encoding / decoding device | |
| JPS5494210A (en) | Audio analysis and synthesis unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EC2A | Search report published |
Date of ref document: 20000501 Kind code of ref document: A1 Effective date: 20000501 |
|
| FD2A | Announcement of lapse in spain |
Effective date: 20180525 |