FR848058A - Appareil récepteur radio-électrique à accord complètement automatique - Google Patents

Appareil récepteur radio-électrique à accord complètement automatique

Info

Publication number: FR848058A
Authority: FR; France
Prior art keywords: radio receiver; fully automatic; automatic tuning; tuning radio; fully
Prior art date: 1937-12-29
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

Application number

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken NV

Priority date (The priority date 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 date listed.)

1937-12-29

Filing date

1938-12-27

Publication date

1939-10-23

1938-12-27 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1939-10-23 Application granted granted Critical

1939-10-23 Publication of FR848058A publication Critical patent/FR848058A/fr

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
- G05D3/1481—Control of position or direction using feedback using an analogue comparing device with discrete position sensor
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/18—Control by auxiliary power
- 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
- H03J5/14—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 operated by auxiliary power
- H03J5/146—Settings desired by a switch controlled together with the tuning member and which stops the control as soon as a desired position is reached

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Automation & Control Theory (AREA)
Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Control Of Position Or Direction (AREA)

FR848058D 1937-12-29 1938-12-27 Appareil récepteur radio-électrique à accord complètement automatique Expired FR848058A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE1937N0041484 DE686190C (de)	1937-12-29	1937-12-29	bestimmter Stationen mittels eines Motors selbsttaetig abstimmbar ist

Publications (1)

Publication Number	Publication Date
FR848058A true FR848058A (fr)	1939-10-23

Family

ID=5791858

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR848058D Expired FR848058A (fr)	1937-12-29	1938-12-27	Appareil récepteur radio-électrique à accord complètement automatique

Country Status (6)

Country	Link
US (1)	US2251054A (fr)
BE (1)	BE431868A (fr)
CH (1)	CH206319A (fr)
DE (1)	DE686190C (fr)
FR (1)	FR848058A (fr)
GB (1)	GB507305A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2454832A (en) *	1946-02-20	1948-11-30	Charles L Paulus	Electric servo
US2720619A (en) *	1949-01-11	1955-10-11	Northrop Aircraft Inc	Automatic resetting positioning control
DE1158614B (de) *	1957-05-01	1963-12-05	Gen Electric	Rastschalter mit Motorantrieb
US3493745A (en) *	1966-06-16	1970-02-03	Picker Corp	Apparatus for preventing collision between two electrically conductive and relatively movable servo-controlled elements

1937
- 1937-12-29 DE DE1937N0041484 patent/DE686190C/de not_active Expired
1938
- 1938-12-16 US US246088A patent/US2251054A/en not_active Expired - Lifetime
- 1938-12-23 GB GB37459/38A patent/GB507305A/en not_active Expired
- 1938-12-27 CH CH206319D patent/CH206319A/de unknown
- 1938-12-27 BE BE431868D patent/BE431868A/xx unknown
- 1938-12-27 FR FR848058D patent/FR848058A/fr not_active Expired

Also Published As

Publication number	Publication date
GB507305A (en)	1939-06-13
BE431868A (fr)	1939-01-31
US2251054A (en)	1941-07-29
CH206319A (de)	1939-07-31
DE686190C (de)	1940-01-04

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