BR0302553A - Equipamento telefônico sem fio com espalhamento espectral em voz amostrada - Google Patents

Equipamento telefônico sem fio com espalhamento espectral em voz amostrada

Info

Publication number
BR0302553A
BR0302553A BR0302553-5A BR0302553A BR0302553A BR 0302553 A BR0302553 A BR 0302553A BR 0302553 A BR0302553 A BR 0302553A BR 0302553 A BR0302553 A BR 0302553A
Authority
BR
Brazil
Prior art keywords
cordless
spectral
sampled voice
cordless telephone
telephones
Prior art date
Application number
BR0302553-5A
Other languages
English (en)
Inventor
Joao Martinho Costa
Original Assignee
Intelbras S A Ind De Telecomun
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 Intelbras S A Ind De Telecomun filed Critical Intelbras S A Ind De Telecomun
Priority to BR0302553-5A priority Critical patent/BR0302553A/pt
Priority to PCT/BR2004/000107 priority patent/WO2005004346A1/en
Priority to US10/563,521 priority patent/US20060233220A1/en
Priority to CA002530513A priority patent/CA2530513A1/en
Priority to EP04737701A priority patent/EP1649606A1/en
Publication of BR0302553A publication Critical patent/BR0302553A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/72502—Cordless telephones with one base station connected to a single line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

"EQUIPAMENTO TELEFôNICO SEM FIO COM ESPALHAMENTO ESPECTRAL EM VOZ AMOSTRADA". Descreve-se a presente patente como um telefone sem fio com espalhamento espectral em voz amostrada que, de acordo com as suas características, possui como princípio possibilitar a formação de telefones sem fio, PABX sem fio e similares sem fio de longo alcance, através do espalhamento espectral em voz amostrada, compondo um telefone sem fio que incorpora uma concepção construtiva diferenciada introduzida diretamente no seu transmissor e no seu receptor, conferindo ao mesmo um alcance de transmissão superior em relação aos telefones analógicos, digitais e de espalhamento espectral conhecidos, aliado a uma redução de custo de matéria prima e otimização da banda espectral sendo facilmente adaptável a qualquer sistema de comunicação de sinais analógicos via ondas de rádio.
BR0302553-5A 2003-07-01 2003-07-01 Equipamento telefônico sem fio com espalhamento espectral em voz amostrada BR0302553A (pt)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BR0302553-5A BR0302553A (pt) 2003-07-01 2003-07-01 Equipamento telefônico sem fio com espalhamento espectral em voz amostrada
PCT/BR2004/000107 WO2005004346A1 (en) 2003-07-01 2004-06-29 Wireless telephone with spectral spread in sampled voice
US10/563,521 US20060233220A1 (en) 2003-07-01 2004-06-29 Wireless telephone with spectral spread in sampled voice
CA002530513A CA2530513A1 (en) 2003-07-01 2004-06-29 Wireless telephone with spectral spread in sampled voice
EP04737701A EP1649606A1 (en) 2003-07-01 2004-06-29 Wireless telephone with spectral spread in sampled voice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR0302553-5A BR0302553A (pt) 2003-07-01 2003-07-01 Equipamento telefônico sem fio com espalhamento espectral em voz amostrada

Publications (1)

Publication Number Publication Date
BR0302553A true BR0302553A (pt) 2005-03-29

Family

ID=33557330

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0302553-5A BR0302553A (pt) 2003-07-01 2003-07-01 Equipamento telefônico sem fio com espalhamento espectral em voz amostrada

Country Status (5)

Country Link
US (1) US20060233220A1 (pt)
EP (1) EP1649606A1 (pt)
BR (1) BR0302553A (pt)
CA (1) CA2530513A1 (pt)
WO (1) WO2005004346A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6993333B2 (en) * 2003-10-16 2006-01-31 Flarion Technologies, Inc. Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system
CN116723451B (zh) * 2023-08-10 2023-11-03 上海海栎创科技股份有限公司 一种放音电源控制电路及控制方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1119972B (it) * 1979-12-13 1986-03-19 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la trasmissione di segnali analogici in un sistema di comunicazione a spettro diffuso
US5150377A (en) * 1990-11-02 1992-09-22 At&T Bell Laboratories Direct sequence spread spectrum (dsss) communications system with frequency modulation utilized to achieve spectral spreading
US5140610A (en) * 1991-10-08 1992-08-18 The United States Of America As Represented By The Secretary Of The Army FM video data link spectrum spreading
GB2276794A (en) * 1993-03-25 1994-10-05 Roke Manor Research Spread spectrum analog signal communication system
DE19529477A1 (de) * 1995-08-10 1997-02-13 Paul Drude Inst Fuer Festkoerp Spread-Spektrum-Signalübertragungsverfahren und -system sowie Sender und Empfänger zur Verwendung bei dem Verfahren bzw. System
US6549559B2 (en) * 1997-12-23 2003-04-15 Koninklijke Philips Electronics N.V. Apparatus and method for locking onto a psuedo-noise code in an IS-95 spread spectrum communications system

Also Published As

Publication number Publication date
WO2005004346A1 (en) 2005-01-13
EP1649606A1 (en) 2006-04-26
US20060233220A1 (en) 2006-10-19
CA2530513A1 (en) 2005-01-13

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 10A ANUIDADE.

B08H Application fees: decision cancelled [chapter 8.8 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 NA RPI 2260 EM 29/04/2014

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM O ART .8O COMBINADO COM ART. 13 E ART. 25 DA LPI

B12B Appeal against refusal [chapter 12.2 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 23/07/2019, OBSERVADAS AS CONDICOES LEGAIS. (CO) 10 (DEZ) ANOS CONTADOS A PARTIR DE 23/07/2019, OBSERVADAS AS CONDICOES LEGAIS