DE2126717A1 - Digitaler Frequenzgenerator - Google Patents
Digitaler FrequenzgeneratorInfo
- Publication number
- DE2126717A1 DE2126717A1 DE19712126717 DE2126717A DE2126717A1 DE 2126717 A1 DE2126717 A1 DE 2126717A1 DE 19712126717 DE19712126717 DE 19712126717 DE 2126717 A DE2126717 A DE 2126717A DE 2126717 A1 DE2126717 A1 DE 2126717A1
- Authority
- DE
- Germany
- Prior art keywords
- digital
- frequency
- signal
- oscillator
- values
- 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.)
- Pending
Links
- 230000015654 memory Effects 0.000 claims description 47
- 230000006641 stabilisation Effects 0.000 claims description 25
- 238000011105 stabilization Methods 0.000 claims description 25
- 230000006870 function Effects 0.000 claims description 16
- 238000005070 sampling Methods 0.000 claims description 8
- 238000007792 addition Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 210000000056 organ Anatomy 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000012937 correction Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 101100455532 Arabidopsis thaliana LSF2 gene Proteins 0.000 description 1
- 101000700835 Homo sapiens Suppressor of SWI4 1 homolog Proteins 0.000 description 1
- 241000009328 Perro Species 0.000 description 1
- 102100029338 Suppressor of SWI4 1 homolog Human genes 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L5/00—Automatic control of voltage, current, or power
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
- H04M1/505—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies signals generated in digital form
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
- H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
- H04Q1/4575—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals which are transmitted in digital form
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7019605A FR2087711A5 (OSRAM) | 1970-05-28 | 1970-05-28 | |
| FR7022230A FR2094307A6 (OSRAM) | 1970-06-15 | 1970-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2126717A1 true DE2126717A1 (de) | 1971-12-09 |
Family
ID=26215768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712126717 Pending DE2126717A1 (de) | 1970-05-28 | 1971-05-28 | Digitaler Frequenzgenerator |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2126717A1 (OSRAM) |
| GB (1) | GB1338633A (OSRAM) |
| NL (1) | NL7107106A (OSRAM) |
| SE (1) | SE373711B (OSRAM) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4058805A (en) | 1975-06-16 | 1977-11-15 | Comdial Corporation | Digital multitone generator for telephone dialing |
-
1971
- 1971-05-25 NL NL7107106A patent/NL7107106A/xx not_active Application Discontinuation
- 1971-05-27 SE SE686471A patent/SE373711B/xx unknown
- 1971-05-28 GB GB1814171A patent/GB1338633A/en not_active Expired
- 1971-05-28 DE DE19712126717 patent/DE2126717A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1338633A (en) | 1973-11-28 |
| SE373711B (sv) | 1975-02-10 |
| NL7107106A (OSRAM) | 1971-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| OGA | New person/name/address of the applicant | ||
| OHN | Withdrawal |