IT948920B - Sistema per la trasposizione in frequenza di segnali analogici - Google Patents
Sistema per la trasposizione in frequenza di segnali analogiciInfo
- Publication number
- IT948920B IT948920B IT67201/72A IT6720172A IT948920B IT 948920 B IT948920 B IT 948920B IT 67201/72 A IT67201/72 A IT 67201/72A IT 6720172 A IT6720172 A IT 6720172A IT 948920 B IT948920 B IT 948920B
- Authority
- IT
- Italy
- Prior art keywords
- analog signals
- frequency transposition
- transposition
- frequency
- analog
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0219—Compensation of undesirable effects, e.g. quantisation noise, overflow
-
- 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
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0223—Computation saving measures; Accelerating measures
- H03H17/0233—Measures concerning the signal representation
- H03H17/0236—Measures concerning the signal representation using codes
-
- 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
- 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
- H03D2200/0052—Digital to analog 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
- H03D2200/0066—Mixing
- H03D2200/007—Mixing by using a logic circuit, e.g. flipflop, XOR
-
- 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
- H03D2200/0088—Reduction of intermodulation, nonlinearities, adjacent channel interference; intercept points of harmonics or intermodulation products
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Power Engineering (AREA)
- Theoretical Computer Science (AREA)
- Computing Systems (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Analogue/Digital Conversion (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7101037A NL7101037A (it) | 1971-01-27 | 1971-01-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT948920B true IT948920B (it) | 1973-06-11 |
Family
ID=19812338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT67201/72A IT948920B (it) | 1971-01-27 | 1972-01-24 | Sistema per la trasposizione in frequenza di segnali analogici |
Country Status (12)
Country | Link |
---|---|
US (1) | US3753115A (it) |
JP (1) | JPS5335424B1 (it) |
AU (1) | AU458797B2 (it) |
BE (1) | BE778465A (it) |
CA (1) | CA954628A (it) |
CH (1) | CH549310A (it) |
DE (1) | DE2201391C3 (it) |
FR (1) | FR2123460B1 (it) |
GB (1) | GB1373717A (it) |
IT (1) | IT948920B (it) |
NL (1) | NL7101037A (it) |
SE (1) | SE373468B (it) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2238299B1 (it) * | 1973-07-20 | 1977-12-23 | Trt Telecom Radio Electr | |
NL7415664A (nl) * | 1974-12-02 | 1976-06-04 | Philips Nv | Inrichting voor automatische egalisatie. |
NL175575C (nl) * | 1976-05-28 | 1984-11-16 | Philips Nv | Filter- en demodulatie-inrichting. |
NL178469C (nl) * | 1976-07-06 | 1986-03-17 | Philips Nv | Niet-recursief discreet filter. |
DE2651480C2 (de) * | 1976-11-11 | 1985-10-17 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Restseitenband-Modulationsverfahren |
US4382285A (en) * | 1980-12-30 | 1983-05-03 | Motorola, Inc. | Filter for binary data with integral output amplitude multiplier |
GB2251524B (en) * | 1990-10-17 | 1994-11-02 | Qiuting Huang | Analogue oversampled finite impulse response filter |
US10327659B2 (en) * | 2016-11-13 | 2019-06-25 | Analog Devices, Inc. | Quantization noise cancellation in a feedback loop |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3184685A (en) * | 1962-12-18 | 1965-05-18 | Ibm | Waveform generators |
US3297951A (en) * | 1963-12-20 | 1967-01-10 | Ibm | Transversal filter having a tapped and an untapped delay line of equal delay, concatenated to effectively provide sub-divided delays along both lines |
GB1143758A (it) * | 1965-11-16 | |||
NL153045B (nl) * | 1966-03-05 | 1977-04-15 | Philips Nv | Filter voor analoge signalen. |
NL6615058A (it) * | 1966-10-25 | 1968-04-26 | ||
US3639848A (en) * | 1970-02-20 | 1972-02-01 | Electronic Communications | Transverse digital filter |
-
1971
- 1971-01-27 NL NL7101037A patent/NL7101037A/xx not_active Application Discontinuation
-
1972
- 1972-01-04 US US00215334A patent/US3753115A/en not_active Expired - Lifetime
- 1972-01-13 DE DE2201391A patent/DE2201391C3/de not_active Expired
- 1972-01-20 CA CA 132809 patent/CA954628A/en not_active Expired
- 1972-01-24 SE SE7200748A patent/SE373468B/xx unknown
- 1972-01-24 AU AU38207/72A patent/AU458797B2/en not_active Expired
- 1972-01-24 JP JP898872A patent/JPS5335424B1/ja active Pending
- 1972-01-24 CH CH99772A patent/CH549310A/xx not_active IP Right Cessation
- 1972-01-24 IT IT67201/72A patent/IT948920B/it active
- 1972-01-24 GB GB325772A patent/GB1373717A/en not_active Expired
- 1972-01-25 BE BE778465A patent/BE778465A/xx unknown
- 1972-01-27 FR FR7202671A patent/FR2123460B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2123460B1 (it) | 1976-10-29 |
JPS5335424B1 (it) | 1978-09-27 |
DE2201391B2 (de) | 1979-03-01 |
CA954628A (en) | 1974-09-10 |
FR2123460A1 (it) | 1972-09-08 |
AU3820772A (en) | 1973-07-26 |
SE373468B (it) | 1975-02-03 |
CH549310A (de) | 1974-05-15 |
DE2201391C3 (de) | 1979-10-11 |
AU458797B2 (en) | 1975-02-10 |
US3753115A (en) | 1973-08-14 |
DE2201391A1 (de) | 1972-08-03 |
GB1373717A (en) | 1974-11-13 |
BE778465A (fr) | 1972-07-25 |
NL7101037A (it) | 1972-07-31 |
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