BR0100824A - Método e aparelho para realizar operações demodo analógico ao transmitir áudio e dados em umsistema de tdma sem fio - Google Patents
Método e aparelho para realizar operações demodo analógico ao transmitir áudio e dados em umsistema de tdma sem fioInfo
- Publication number
- BR0100824A BR0100824A BR0100824-2A BR0100824A BR0100824A BR 0100824 A BR0100824 A BR 0100824A BR 0100824 A BR0100824 A BR 0100824A BR 0100824 A BR0100824 A BR 0100824A
- Authority
- BR
- Brazil
- Prior art keywords
- pairs
- digital
- values
- processor
- analog
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/212—Time-division multiple access [TDMA]
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3805—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving with built-in auxiliary receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Transmitters (AREA)
- Transceivers (AREA)
Abstract
"MéTODO E APARELHO PARA REALIZAR OPERAçõES DEMODO ANALóGICO AO TRANSMITIR áUDIO E DADOS EM UMSISTEMA DE TDMA SEM FIO". São providos um método eaparelho para uso em um transceptor de um sistema sem fio quepermite que operações de modo analógico sejam realizadasutilizando valores em fase (I) e de quadratura (Q). O aparelhocompreende um processador que realiza modulação FM para gerarpares I, Q ao operar no modo analógico. Ao transmitir no modoanalógico, o processador codifica uma representação digital dosinal para ser transmitida em pares I, Q e emite os pares I, Q paraum conversor digital/analógico (DAC) compreendido pelo aparelho.O DAC converte os pares digitais I, Q em sinais analógicos e emiteos sinais analógicos para um gerador de onda co-senoidal, quegera uma onda co-senoidal em fase e uma onda co-senoidal forade fase que tem amplitudes que são proporcionais aos valores I eQ, respectivamente. As ondas co-senoidais são somadas paratransmissão aérea. Ao receber no modo analógico, um conversordescendente digital converte o sinal recebido em valores digitais Ie Q. O processador então demodula os valores I e Q em umarepresentação digital do sinal recebido para extrair o conteúdo desinal. Ao mudar de transmissão de dados para transmissão deáudio, e vice-versa, o processador garante que mudanças súbitasnas fases dos pares I, Q não ocorram.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/517,980 US6359937B1 (en) | 2000-03-03 | 2000-03-03 | Method and apparatus for performing analog mode operations when transmitting audio and data in a wireless TDMA system |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0100824A true BR0100824A (pt) | 2001-10-30 |
Family
ID=24062032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0100824-2A BR0100824A (pt) | 2000-03-03 | 2001-02-22 | Método e aparelho para realizar operações demodo analógico ao transmitir áudio e dados em umsistema de tdma sem fio |
Country Status (8)
Country | Link |
---|---|
US (1) | US6359937B1 (pt) |
EP (1) | EP1130864A2 (pt) |
JP (1) | JP3916875B2 (pt) |
KR (1) | KR100814738B1 (pt) |
CN (1) | CN1311573A (pt) |
AU (1) | AU2326301A (pt) |
BR (1) | BR0100824A (pt) |
CA (1) | CA2337927C (pt) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070281626A1 (en) * | 2006-06-05 | 2007-12-06 | Dobosz Paul J | Vehicle telematics satellite data transceiver utilizing fm radio circuitry |
CN103071787A (zh) * | 2012-12-30 | 2013-05-01 | 中银(宁波)电池有限公司 | 无汞锌粉的处理方法、电池锌膏及碱性电池 |
CN109600771B (zh) * | 2018-11-26 | 2020-09-08 | 清华大学 | 一种WiFi设备到ZigBee设备的跨协议通信方法及装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5418818A (en) * | 1992-09-22 | 1995-05-23 | Glenayre Electronics, Inc. | Digital signal processor exciter |
US6032028A (en) * | 1996-04-12 | 2000-02-29 | Continentral Electronics Corporation | Radio transmitter apparatus and method |
US5960040A (en) * | 1996-12-05 | 1999-09-28 | Raytheon Company | Communication signal processors and methods |
US6025758A (en) * | 1997-10-30 | 2000-02-15 | Uniden San Diego Research & Development Center, Inc. | Method and apparatus for performing digital data signal modulation |
IL135874A0 (en) * | 1997-11-03 | 2001-05-20 | Harris Corp | Receiver for a reconfigurable radio system and method therefor |
KR100551481B1 (ko) * | 2004-06-16 | 2006-02-13 | 삼성전자주식회사 | 위상제어가 가능한 직교출력 전압제어 발진기, 그것을구비한 무선신호 트랜시버, 및 직교위상 제어 방법 |
-
2000
- 2000-03-03 US US09/517,980 patent/US6359937B1/en not_active Expired - Lifetime
-
2001
- 2001-02-22 BR BR0100824-2A patent/BR0100824A/pt not_active Application Discontinuation
- 2001-02-23 CA CA002337927A patent/CA2337927C/en not_active Expired - Fee Related
- 2001-02-26 EP EP01301716A patent/EP1130864A2/en not_active Withdrawn
- 2001-02-27 AU AU23263/01A patent/AU2326301A/en not_active Abandoned
- 2001-02-28 CN CN01108967A patent/CN1311573A/zh active Pending
- 2001-03-01 JP JP2001056416A patent/JP3916875B2/ja not_active Expired - Lifetime
- 2001-03-02 KR KR1020010010683A patent/KR100814738B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP1130864A2 (en) | 2001-09-05 |
KR20010087253A (ko) | 2001-09-15 |
JP2001292186A (ja) | 2001-10-19 |
AU2326301A (en) | 2001-09-06 |
CA2337927C (en) | 2005-10-04 |
KR100814738B1 (ko) | 2008-03-19 |
CN1311573A (zh) | 2001-09-05 |
JP3916875B2 (ja) | 2007-05-23 |
US6359937B1 (en) | 2002-03-19 |
CA2337927A1 (en) | 2001-09-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2064419T3 (es) | Receptor para la recepcion de una subportadora de amplitud modulada. | |
DE69924721D1 (de) | Kommunikationsverfahren in einem rückstrahlungssystem abfragegerät und rückstrahlungskommunikationssystem | |
NO996283L (no) | Multimodusrettmottaker | |
EP1128556A3 (en) | Cable modem tuner | |
BR0101298A (pt) | Sistema e método receptor de várias derivações | |
EP0913955A3 (en) | Transmission network and filter therefor | |
JPS5222866A (en) | Demodulation system for angle modulated signal wave | |
DE3751271D1 (de) | System zur Übertragung. | |
AU2002319061A1 (en) | Signal decomposition for the control of its dynamic range | |
WO2004012343A3 (en) | Radio transceiver architectures and methods | |
TW327708B (en) | Apparatus, method and manufacture for carrier frequency compensation in a FM radio transmitter | |
FI101027B (fi) | Multipleksoitu signaalimuunnos | |
JPS5428520A (en) | Method and apparatus for sampling frequency conversion | |
BR0100824A (pt) | Método e aparelho para realizar operações demodo analógico ao transmitir áudio e dados em umsistema de tdma sem fio | |
BR9908516A (pt) | Aparelho e processo para melhorar a faixa dinâmica de um receptor, e, sistema para receber e transmitir sinais | |
WO2003005575A3 (de) | Sendeanordnung mit leistungsregelung | |
MXPA01003088A (es) | Sistema y metodo para transmision de datos a alta velocidad. | |
JPS53131815A (en) | Phase linear type emphasizer | |
JPS5498167A (en) | Fm demodulation device | |
WO2002047277A3 (en) | System and method for processing a signal | |
KR950024073A (ko) | 퍼스널 컴퓨터의 데이타 송수신장치 | |
AU2001267222A1 (en) | Improved method and apparatus for up- and down- conversion of radio frequency (rf) signals | |
JPS54112110A (en) | Communication equipment | |
JPS5220752A (en) | Amplitude phase modulation signal receiver | |
JPS54112104A (en) | Superposition system for supervisory signal |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
B11A | Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing | ||
B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] |