GB398202A - Improvements relating to radio receiving apparatus - Google Patents
Improvements relating to radio receiving apparatusInfo
- Publication number
- GB398202A GB398202A GB6910/32A GB691032A GB398202A GB 398202 A GB398202 A GB 398202A GB 6910/32 A GB6910/32 A GB 6910/32A GB 691032 A GB691032 A GB 691032A GB 398202 A GB398202 A GB 398202A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inductance
- detector
- circuit
- place
- receiving apparatus
- 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
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/08—Demodulation of amplitude-modulated oscillations by means of non-linear two-pole elements
- H03D1/10—Demodulation of amplitude-modulated oscillations by means of non-linear two-pole elements of diodes
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
398,202. Wireless receiving systems. WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London.-(Assignees of Place, W. P. ; 442, Rebecca Avenue, Wilkinsburg, Pennsylvania, U.S.A.) March 8, 1932, No. 6910. Convention date, May 27, 1931. [Class 40 (v).] A detector 1 of the dry surface contact type has an inductance 5 directly across the input terminals and of such value as to render the circuit comprising the rectifier and the inductance non-reactive. The inductance is variable to tune the circuit, or a variable condenser is connected in parallel with the inductance, Fig: 2 (not shown). A high-frequency amplifying valve 2 is used in front of the detector. According to a modification, halfwave detector is used in place of the bridge circuit 1, Fig. 3 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US540348A US1937783A (en) | 1931-05-27 | 1931-05-27 | Wireless communication apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB398202A true GB398202A (en) | 1933-09-08 |
Family
ID=24155058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6910/32A Expired GB398202A (en) | 1931-05-27 | 1932-03-08 | Improvements relating to radio receiving apparatus |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1937783A (en) |
| FR (1) | FR738451A (en) |
| GB (1) | GB398202A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE498159A (en) * | 1949-09-17 | |||
| GB933262A (en) * | 1959-03-26 | 1963-08-08 | Int Computers & Tabulators Ltd | Improvements in or relating to amplitude selection circuit |
-
1931
- 1931-05-27 US US540348A patent/US1937783A/en not_active Expired - Lifetime
-
1932
- 1932-03-08 GB GB6910/32A patent/GB398202A/en not_active Expired
- 1932-05-27 FR FR738451D patent/FR738451A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1937783A (en) | 1933-12-05 |
| FR738451A (en) | 1932-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB398202A (en) | Improvements relating to radio receiving apparatus | |
| GB426727A (en) | Improvements in or relating to high frequency electrical circuits | |
| GB473618A (en) | Improved automatic tuning control means for modulated carrier wave receivers | |
| GB340389A (en) | Improvements in or relating to wireless receivers | |
| GB426228A (en) | Improvements in or relating to radio signalling | |
| GB412944A (en) | Improvements in and relating to radio receiving apparatus | |
| GB616932A (en) | Improvements in tuned circuits and inductances therefor | |
| GB533894A (en) | Improvements in modulated-carrier signal-translating systems | |
| GB412152A (en) | Improvements in and relating to tuning arrangements for high frequency circuits | |
| GB402376A (en) | Improvements relating to radio receiving apparatus | |
| GB339851A (en) | Improved means for operating wireless sets from a direct current source affected by ripples | |
| GB491903A (en) | Improvements in or relating to circuit arrangements for suppressing undesired frequencies in wireless receiving apparatus | |
| GB318328A (en) | Improved means of wireless reception | |
| GB466250A (en) | Improved coupling systems for high frequency electric circuits | |
| GB435135A (en) | Improvements in and relating to interference eliminator for wireless receivers | |
| GB230901A (en) | Improvements in and relating to "wireless" circuits | |
| GB461256A (en) | Improvements in or relating to radio receiving apparatus | |
| GB383668A (en) | Wireless signalling system | |
| GB775169A (en) | Amplitude band selection circuit | |
| GB392411A (en) | Intermediate frequency coupling systems for a superheterodyne receiver for wireless signalling | |
| GB357647A (en) | Improvements in or relating to wave signalling systems | |
| GB353482A (en) | Improvements in and relating to the measuring of variations of frequency of oscillating electric systems | |
| GB378077A (en) | Improvements relating to radio frequency signalling systems | |
| GB263991A (en) | Improvements in and relating to wireless receiving apparatus | |
| GB417608A (en) | Improvements relating to automatic volume control for radio-receiving apparatus |