FR94063E - Carrier systems. - Google Patents
Carrier systems.Info
- Publication number
- FR94063E FR94063E FR108840A FR108840A FR94063E FR 94063 E FR94063 E FR 94063E FR 108840 A FR108840 A FR 108840A FR 108840 A FR108840 A FR 108840A FR 94063 E FR94063 E FR 94063E
- Authority
- FR
- France
- Prior art keywords
- carrier systems
- carrier
- systems
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/04—Frequency-transposition arrangements
-
- 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
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B27/00—Generation of oscillations providing a plurality of outputs of the same frequency but differing in phase, other than merely two anti-phase outputs
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
- H03C1/60—Modulators in which carrier or one sideband is wholly or partially suppressed with one sideband wholly or partially suppressed
-
- 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
- H03D2200/0078—Mixing using a switched phase shifter or delay line
-
- 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
- H03D7/16—Multiple-frequency-changing
- H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
- H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
-
- 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
- H03D7/16—Multiple-frequency-changing
- H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB52293/65A GB1098250A (en) | 1965-12-09 | 1965-12-09 | An n-path frequency translation system |
GB2479466A GB1081240A (en) | 1966-06-03 | 1966-06-03 | Balanced polyphase modulator |
GB24785/66A GB1107346A (en) | 1965-12-09 | 1966-06-03 | A method of synthesising a digital waveform |
GB24792/66A GB1112248A (en) | 1966-06-03 | 1966-06-03 | Improvements in or relating to n-path frequency translation systems |
Publications (1)
Publication Number | Publication Date |
---|---|
FR94063E true FR94063E (en) | 1969-06-27 |
Family
ID=27448647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR108840A Expired FR94063E (en) | 1965-12-09 | 1967-06-02 | Carrier systems. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR94063E (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0691733A3 (en) * | 1994-07-08 | 1996-01-31 | Victor Company Of Japan | |
WO1998038732A1 (en) * | 1997-02-27 | 1998-09-03 | National Research Council | Quadrature modulation and demodulation circuit for an oscillating waveform |
-
1967
- 1967-06-02 FR FR108840A patent/FR94063E/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0691733A3 (en) * | 1994-07-08 | 1996-01-31 | Victor Company Of Japan | |
US5648736A (en) * | 1994-07-08 | 1997-07-15 | Victor Company Of Japan, Ltd. | Frequency converting circuit |
WO1998038732A1 (en) * | 1997-02-27 | 1998-09-03 | National Research Council | Quadrature modulation and demodulation circuit for an oscillating waveform |
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