FR2447112B1 - - Google Patents
Info
- Publication number
- FR2447112B1 FR2447112B1 FR7901512A FR7901512A FR2447112B1 FR 2447112 B1 FR2447112 B1 FR 2447112B1 FR 7901512 A FR7901512 A FR 7901512A FR 7901512 A FR7901512 A FR 7901512A FR 2447112 B1 FR2447112 B1 FR 2447112B1
- Authority
- FR
- France
- 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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
- H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
- H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
- H03J5/0281—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer the digital values being held in an auxiliary non erasable memory
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/18—Selecting circuits
- G10H1/182—Key multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7901512A FR2447112A1 (fr) | 1979-01-22 | 1979-01-22 | Dispositif de traitement de la frequence d'un signal et application notamment aux instruments de musique electroniques |
| IT12415/80A IT1136105B (it) | 1979-01-22 | 1980-01-21 | Dispositivo di trattamento della frequenza di un segnale ed applicazione in particolare agli strumenti di musica elettronici |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7901512A FR2447112A1 (fr) | 1979-01-22 | 1979-01-22 | Dispositif de traitement de la frequence d'un signal et application notamment aux instruments de musique electroniques |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2447112A1 FR2447112A1 (fr) | 1980-08-14 |
| FR2447112B1 true FR2447112B1 (US07923587-20110412-C00001.png) | 1983-07-18 |
Family
ID=9221021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7901512A Granted FR2447112A1 (fr) | 1979-01-22 | 1979-01-22 | Dispositif de traitement de la frequence d'un signal et application notamment aux instruments de musique electroniques |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2447112A1 (US07923587-20110412-C00001.png) |
| IT (1) | IT1136105B (US07923587-20110412-C00001.png) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3610799A (en) * | 1969-10-30 | 1971-10-05 | North American Rockwell | Multiplexing system for selection of notes and voices in an electronic musical instrument |
| US3882400A (en) * | 1972-11-27 | 1975-05-06 | Sony Corp | Broadcast receiver |
| JPS5421049B2 (US07923587-20110412-C00001.png) * | 1973-12-28 | 1979-07-27 | ||
| US3854366A (en) * | 1974-04-26 | 1974-12-17 | Nippon Musical Instruments Mfg | Automatic arpeggio |
| US4085645A (en) * | 1976-10-29 | 1978-04-25 | Motorola, Inc. | Instantly retunable tone generator for an electronic musical instrument |
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1979
- 1979-01-22 FR FR7901512A patent/FR2447112A1/fr active Granted
-
1980
- 1980-01-21 IT IT12415/80A patent/IT1136105B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| FR2447112A1 (fr) | 1980-08-14 |
| IT8012415A0 (it) | 1980-01-21 |
| IT1136105B (it) | 1986-08-27 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |