GB529862A - Improvements in or relating to wireless heterodyne reciving apparatus - Google Patents
Improvements in or relating to wireless heterodyne reciving apparatusInfo
- Publication number
- GB529862A GB529862A GB1695639A GB1695639A GB529862A GB 529862 A GB529862 A GB 529862A GB 1695639 A GB1695639 A GB 1695639A GB 1695639 A GB1695639 A GB 1695639A GB 529862 A GB529862 A GB 529862A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- local
- intermediate frequency
- wireless
- reciving
- 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
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/26—Circuits for superheterodyne receivers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
529,862. Wireless receiving circuits. GENERAL ELECTRIC CO., Ltd., BLIGH, N. R., and BLOCH, A. June 9, 1939, No. 16956. [Class 40 (v)] In a radio receiver particularly for short wave television reception on a single wavelength, intermediate frequency drift is reduced by making the local frequency proportional to the intermediate frequency. The natural frequency of the local oscillator is adjusted to be close to the intermediate frequency and is then made equal to the intermediate frequency by the local oscillator being forced by the intermediate oscillations. The desired local frequency is then obtained from the oscillator by means of a frequency multiplier. Specification 415,051 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1695639A GB529862A (en) | 1939-06-09 | 1939-06-09 | Improvements in or relating to wireless heterodyne reciving apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1695639A GB529862A (en) | 1939-06-09 | 1939-06-09 | Improvements in or relating to wireless heterodyne reciving apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB529862A true GB529862A (en) | 1940-11-29 |
Family
ID=10086684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1695639A Expired GB529862A (en) | 1939-06-09 | 1939-06-09 | Improvements in or relating to wireless heterodyne reciving apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB529862A (en) |
-
1939
- 1939-06-09 GB GB1695639A patent/GB529862A/en not_active Expired
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