GB258865A - A method of improving tone in broadcasting - Google Patents
A method of improving tone in broadcastingInfo
- Publication number
- GB258865A GB258865A GB23014/26A GB2301426A GB258865A GB 258865 A GB258865 A GB 258865A GB 23014/26 A GB23014/26 A GB 23014/26A GB 2301426 A GB2301426 A GB 2301426A GB 258865 A GB258865 A GB 258865A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lag
- time
- record
- microphone
- broadcasting
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/88—Stereophonic broadcast systems
Abstract
258,865. K³chenmeister, H. Sept. 22, 1925, [Convention date]. Drawings to Specification. Diplex signalling.-In order to produce a stereophonic or plastic effect in reception, two separate microphones are used at the transmitting station, one being separated from the other by preferably 33 metres so as to give rise to an effective time-lag of one-tenth of a second. The time-lag may, however, vary from one-eighth to one-thirtieth of a second. The two microphone currents may be used to modulate carrier-waves of different frequency. These are separately rectified at the receiving end, and, in the case of headphones, are fed independently to the two earpieces. When reproducing from a gramophone record the necessary time-lag is produced as described in Specification 238,372, [Class 40 (ii), Phonographs &c.], by passing two sound-boxes over the record, one being an electric microphone which acts directly upon the transmitter.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE258865X | 1925-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB258865A true GB258865A (en) | 1927-12-01 |
Family
ID=5966750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23014/26A Expired GB258865A (en) | 1925-09-22 | 1926-09-17 | A method of improving tone in broadcasting |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB258865A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2712596A (en) * | 1952-06-18 | 1955-07-05 | Harold T Sherman | Binaural radio systems |
| US3590382A (en) * | 1967-12-20 | 1971-06-29 | Frank M Kenney | Wireless stereo sound speaker system and modulator-oscillator circuit |
-
1926
- 1926-09-17 GB GB23014/26A patent/GB258865A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2712596A (en) * | 1952-06-18 | 1955-07-05 | Harold T Sherman | Binaural radio systems |
| US3590382A (en) * | 1967-12-20 | 1971-06-29 | Frank M Kenney | Wireless stereo sound speaker system and modulator-oscillator circuit |
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