JPS5143934B1 - - Google Patents
Info
- Publication number
- JPS5143934B1 JPS5143934B1 JP7236116A JP3611672A JPS5143934B1 JP S5143934 B1 JPS5143934 B1 JP S5143934B1 JP 7236116 A JP7236116 A JP 7236116A JP 3611672 A JP3611672 A JP 3611672A JP S5143934 B1 JPS5143934 B1 JP S5143934B1
- Authority
- JP
- Japan
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
- G11B20/1419—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol to or from biphase level coding, i.e. to or from codes where a one is coded as a transition from a high to a low level during the middle of a bit cell and a zero is encoded as a transition from a low to a high level during the middle of a bit cell or vice versa, e.g. split phase code, Manchester code conversion to or from biphase space or mark coding, i.e. to or from codes where there is a transition at the beginning of every bit cell and a one has no second transition and a zero has a second transition one half of a bit period later or vice versa, e.g. double frequency code, FM code
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
- H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
- H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
- H03K4/50—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor
- H03K4/501—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator
- H03K4/502—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator the capacitor being charged from a constant-current source
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Details Of Television Scanning (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13321971A | 1971-04-12 | 1971-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5143934B1 true JPS5143934B1 (ja) | 1976-11-25 |
Family
ID=22457533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7236116A Pending JPS5143934B1 (ja) | 1971-04-12 | 1972-04-12 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3694772A (ja) |
| JP (1) | JPS5143934B1 (ja) |
| CA (1) | CA948718A (ja) |
| DE (1) | DE2210152C3 (ja) |
| FR (1) | FR2136315A5 (ja) |
| GB (1) | GB1389723A (ja) |
| IT (1) | IT960559B (ja) |
| NL (1) | NL174206C (ja) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2249082C3 (de) * | 1972-10-06 | 1980-11-27 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Dreieckspannungsgenerator |
| JPS5532054B2 (ja) * | 1972-12-26 | 1980-08-22 | ||
| JPS562437Y2 (ja) * | 1974-05-29 | 1981-01-20 | ||
| DE2549827C2 (de) * | 1975-11-04 | 1982-08-05 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Impulsbreitensteuerung |
| DE2712369C2 (de) * | 1977-03-22 | 1981-09-24 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Oszillator zur Erzeugung von Rechteckimpulsen |
| US4264879A (en) * | 1978-12-18 | 1981-04-28 | Ncr Corporation | Interval timer circuit relaxation oscillator |
| DE2912492A1 (de) * | 1979-03-29 | 1980-10-09 | Siemens Ag | Monolithisch integrierbarer rechteckimpulsgenerator |
| JPS56129423A (en) * | 1980-03-14 | 1981-10-09 | Sony Corp | Triangle wave generating circuit |
| JPS5834618A (ja) * | 1981-08-21 | 1983-03-01 | テクトロニクス・インコ−ポレイテツド | 対称性制御型関数発生器 |
| DE3329242A1 (de) * | 1983-08-12 | 1985-02-21 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zum ueberpruefen des zeitlichen abstands von rechtecksignalen |
| US5274338A (en) * | 1990-02-05 | 1993-12-28 | Deutsche Thomson-Brandt Gmbh | Integrated FM detector including an oscillator having a capacitor and Schmitt trigger |
| DE4003418A1 (de) * | 1990-02-05 | 1991-08-08 | Thomson Brandt Gmbh | Integrierter fm detektor |
| US6781357B2 (en) * | 2001-09-27 | 2004-08-24 | Power Integrations, Inc. | Method and apparatus for maintaining a constant load current with line voltage in a switch mode power supply |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3376518A (en) * | 1964-05-13 | 1968-04-02 | Radiation Instr Dev Lab | Low frequency oscillator circuit |
| US3559098A (en) * | 1968-10-10 | 1971-01-26 | Electro Optical Ind Inc | Wide frequency range voltage controlled transistor relaxation oscillator |
-
1971
- 1971-04-12 US US133219A patent/US3694772A/en not_active Expired - Lifetime
-
1972
- 1972-02-22 CA CA135,266A patent/CA948718A/en not_active Expired
- 1972-03-02 DE DE2210152A patent/DE2210152C3/de not_active Expired
- 1972-03-14 GB GB1186472A patent/GB1389723A/en not_active Expired
- 1972-04-11 FR FR7212596A patent/FR2136315A5/fr not_active Expired
- 1972-04-12 JP JP7236116A patent/JPS5143934B1/ja active Pending
- 1972-04-12 NL NLAANVRAGE7204915,A patent/NL174206C/xx not_active IP Right Cessation
- 1972-04-12 IT IT7222/72A patent/IT960559B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| NL174206C (nl) | 1984-05-01 |
| GB1389723A (en) | 1975-04-09 |
| FR2136315A5 (ja) | 1972-12-22 |
| CA948718A (en) | 1974-06-04 |
| NL174206B (nl) | 1983-12-01 |
| IT960559B (it) | 1973-11-30 |
| DE2210152C3 (de) | 1975-09-11 |
| NL7204915A (ja) | 1972-10-16 |
| DE2210152B2 (de) | 1975-01-09 |
| US3694772A (en) | 1972-09-26 |
| DE2210152A1 (de) | 1972-11-02 |