MX9207217A - Aparato y metodo de traslado de frecuencia. - Google Patents
Aparato y metodo de traslado de frecuencia.Info
- Publication number
- MX9207217A MX9207217A MX9207217A MX9207217A MX9207217A MX 9207217 A MX9207217 A MX 9207217A MX 9207217 A MX9207217 A MX 9207217A MX 9207217 A MX9207217 A MX 9207217A MX 9207217 A MX9207217 A MX 9207217A
- Authority
- MX
- Mexico
- Prior art keywords
- frequency transfer
- transfer
- frequency
- Prior art date
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations
- H03D13/001—Circuits for comparing the phase or frequency of two mutually-independent oscillations in which a pulse counter is used followed by a conversion into an analog signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0041—Functional aspects of demodulators
- H03D2200/005—Analog to digital conversion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0041—Functional aspects of demodulators
- H03D2200/006—Signal sampling
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0041—Functional aspects of demodulators
- H03D2200/0066—Mixing
- H03D2200/007—Mixing by using a logic circuit, e.g. flipflop, XOR
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Manipulation Of Pulses (AREA)
- Superheterodyne Receivers (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
- Measuring Phase Differences (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/806,511 US5289505A (en) | 1991-12-13 | 1991-12-13 | Frequency translation apparatus and method |
Publications (1)
Publication Number | Publication Date |
---|---|
MX9207217A true MX9207217A (es) | 1993-06-01 |
Family
ID=25194207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX9207217A MX9207217A (es) | 1991-12-13 | 1992-12-11 | Aparato y metodo de traslado de frecuencia. |
Country Status (9)
Country | Link |
---|---|
US (1) | US5289505A (es) |
JP (1) | JP2926986B2 (es) |
KR (1) | KR960007812B1 (es) |
BR (1) | BR9205617A (es) |
CA (1) | CA2101527C (es) |
GB (1) | GB2269078B (es) |
MX (1) | MX9207217A (es) |
UA (1) | UA32527C2 (es) |
WO (1) | WO1993012603A1 (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5461643A (en) * | 1993-04-08 | 1995-10-24 | Motorola | Direct phase digitizing apparatus and method |
US5436589A (en) * | 1994-01-31 | 1995-07-25 | Motorola, Inc. | Demodulator for frequency shift keyed signals |
US5661433A (en) * | 1996-06-27 | 1997-08-26 | Motorola, Inc. | Digital FM demodulator |
US6148050A (en) * | 1997-12-01 | 2000-11-14 | Ericsson Inc | Phase digitizer for radio communications |
US6112071A (en) * | 1998-02-23 | 2000-08-29 | Tropian, Inc. | Quadrature-free RF receiver for directly receiving angle modulated signal |
US6957056B2 (en) * | 2002-03-28 | 2005-10-18 | Motorola, Inc. | Receiver and method for determining an intermediate frequency in a wireless communication device |
US7729726B2 (en) | 2004-03-26 | 2010-06-01 | Nortel Networks Limited | Feeder cable reduction |
US8135086B1 (en) | 2004-08-09 | 2012-03-13 | Rockstar Bidco, LP | Cable reduction |
US8452333B2 (en) * | 2005-12-12 | 2013-05-28 | Apple Inc. | Feeder cable reduction |
US9025969B2 (en) * | 2012-05-24 | 2015-05-05 | Futurewei Technologies, Inc. | Method with improved phase robustness in coherent detected optical system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3579591D1 (de) * | 1984-11-22 | 1990-10-11 | Devon County Council | Daten-modulator-demodulatorsystem. |
US5001724A (en) * | 1989-01-13 | 1991-03-19 | Hewlett-Packard Company | Method and apparatus for measuring phase accuracy and amplitude profile of a continuous-phase-modulated signal |
US4922206A (en) * | 1989-06-28 | 1990-05-01 | Rockwell International Corporation | Method of demodulation using split delay line |
JPH082060B2 (ja) * | 1989-09-13 | 1996-01-10 | 日本電気株式会社 | 搬送波再生方式およびディジタル位相復調装置 |
US5058136A (en) * | 1990-12-17 | 1991-10-15 | Motorola, Inc. | Coherent detection for QPSK modulation |
US5067139A (en) * | 1990-12-17 | 1991-11-19 | Motorola, Inc. | Coherent detector for QPSK modulation in a TDMA system |
-
1991
- 1991-12-13 US US07/806,511 patent/US5289505A/en not_active Expired - Lifetime
-
1992
- 1992-09-21 BR BR9205617A patent/BR9205617A/pt not_active IP Right Cessation
- 1992-09-21 WO PCT/US1992/008057 patent/WO1993012603A1/en active Application Filing
- 1992-09-21 KR KR1019930702235A patent/KR960007812B1/ko not_active IP Right Cessation
- 1992-09-21 UA UA93004410A patent/UA32527C2/uk unknown
- 1992-09-21 CA CA002101527A patent/CA2101527C/en not_active Expired - Fee Related
- 1992-09-21 JP JP5510873A patent/JP2926986B2/ja not_active Expired - Fee Related
- 1992-12-11 MX MX9207217A patent/MX9207217A/es not_active IP Right Cessation
-
1993
- 1993-07-15 GB GB9314677A patent/GB2269078B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR960007812B1 (ko) | 1996-06-12 |
GB2269078B (en) | 1995-04-12 |
JPH06505615A (ja) | 1994-06-23 |
CA2101527C (en) | 1998-08-11 |
UA32527C2 (uk) | 2001-02-15 |
WO1993012603A1 (en) | 1993-06-24 |
JP2926986B2 (ja) | 1999-07-28 |
KR930703771A (ko) | 1993-11-30 |
CA2101527A1 (en) | 1993-06-14 |
BR9205617A (pt) | 1994-05-03 |
GB9314677D0 (en) | 1993-10-20 |
GB2269078A (en) | 1994-01-26 |
US5289505A (en) | 1994-02-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant or registration | ||
MM | Annulment or lapse due to non-payment of fees |