ES379900A1 - Amplifying and repeating circuit for angle modulated signals - Google Patents
Amplifying and repeating circuit for angle modulated signalsInfo
- Publication number
- ES379900A1 ES379900A1 ES379900A ES379900A ES379900A1 ES 379900 A1 ES379900 A1 ES 379900A1 ES 379900 A ES379900 A ES 379900A ES 379900 A ES379900 A ES 379900A ES 379900 A1 ES379900 A1 ES 379900A1
- Authority
- ES
- Spain
- Prior art keywords
- amplifying
- modulated signals
- angle modulated
- repeating circuit
- oscillator
- 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
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
- H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
- H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/345—Negative-feedback-circuit arrangements with or without positive feedback using hybrid or directional couplers
-
- 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
- H04B7/155—Ground-based stations
- H04B7/165—Ground-based stations employing angle modulation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Amplifiers (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Amplifier - repeater circuit for angularly modulated lines, characterized by the fact that it comprises a frequency converter (1), at least one linear filter amplifier F (s), an oscillator (VCO) whose frequency is controlled by signals of which at least one comes from at least one of said amplifiers, and at least one patent divider, which is powered by said oscillator, is connected to said converter and presents an output u1 (t) for the amplified signal. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT5196369 | 1969-05-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES379900A1 true ES379900A1 (en) | 1973-04-16 |
Family
ID=11276093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES379900A Expired ES379900A1 (en) | 1969-05-23 | 1970-05-21 | Amplifying and repeating circuit for angle modulated signals |
Country Status (6)
Country | Link |
---|---|
AU (1) | AU1515870A (en) |
DE (1) | DE2023809A1 (en) |
ES (1) | ES379900A1 (en) |
FR (1) | FR2053904A5 (en) |
GB (1) | GB1307888A (en) |
NL (1) | NL7007520A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2239996B (en) * | 1990-01-12 | 1994-08-17 | Technophone Ltd | Booster for a portable radio telephone |
FR2673789B1 (en) * | 1991-03-08 | 1993-09-03 | Alcatel Espace | PHASE LOOP DEMODULATOR. |
-
1970
- 1970-05-13 GB GB2309770A patent/GB1307888A/en not_active Expired
- 1970-05-15 DE DE19702023809 patent/DE2023809A1/en active Pending
- 1970-05-15 AU AU15158/70A patent/AU1515870A/en not_active Expired
- 1970-05-21 ES ES379900A patent/ES379900A1/en not_active Expired
- 1970-05-22 FR FR7018735A patent/FR2053904A5/fr not_active Expired
- 1970-05-25 NL NL7007520A patent/NL7007520A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
FR2053904A5 (en) | 1971-04-16 |
GB1307888A (en) | 1973-02-21 |
AU1515870A (en) | 1971-11-18 |
NL7007520A (en) | 1970-11-25 |
DE2023809A1 (en) | 1971-01-07 |
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