NL7312597A - - Google Patents
Info
- Publication number
- NL7312597A NL7312597A NL7312597A NL7312597A NL7312597A NL 7312597 A NL7312597 A NL 7312597A NL 7312597 A NL7312597 A NL 7312597A NL 7312597 A NL7312597 A NL 7312597A NL 7312597 A NL7312597 A NL 7312597A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations
- H03D13/007—Circuits for comparing the phase or frequency of two mutually-independent oscillations by analog multiplication of the oscillations or by performing a similar analog operation on the oscillations
- H03D13/008—Circuits for comparing the phase or frequency of two mutually-independent oscillations by analog multiplication of the oscillations or by performing a similar analog operation on the oscillations using transistors
-
- 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
- H04B1/1646—Circuits adapted for the reception of stereophonic signals
- H04B1/1653—Detection of the presence of stereo signals and pilot signal regeneration
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0001—Circuit elements of demodulators
- H03D2200/0009—Emitter or source coupled transistor pairs or long tail pairs
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Rectifiers (AREA)
- Stereo-Broadcasting Methods (AREA)
- Semiconductor Integrated Circuits (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Processing Of Color Television Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47099031A JPS4992905A (OSRAM) | 1972-10-04 | 1972-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7312597A true NL7312597A (OSRAM) | 1974-04-08 |
Family
ID=14235957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7312597A NL7312597A (OSRAM) | 1972-10-04 | 1973-09-12 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3840818A (OSRAM) |
| JP (1) | JPS4992905A (OSRAM) |
| DE (1) | DE2349957A1 (OSRAM) |
| FR (1) | FR2202398B1 (OSRAM) |
| GB (1) | GB1429541A (OSRAM) |
| NL (1) | NL7312597A (OSRAM) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080068132A1 (en) * | 2006-05-16 | 2008-03-20 | Georges Kayanakis | Contactless radiofrequency device featuring several antennas and related antenna selection circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2570156A (en) * | 1950-02-13 | 1951-10-02 | Harold R Reiss | Signal comparator system |
-
1972
- 1972-10-04 JP JP47099031A patent/JPS4992905A/ja active Pending
-
1973
- 1973-09-12 NL NL7312597A patent/NL7312597A/xx unknown
- 1973-09-20 GB GB4427473A patent/GB1429541A/en not_active Expired
- 1973-09-25 FR FR7334322A patent/FR2202398B1/fr not_active Expired
- 1973-10-04 US US00403400A patent/US3840818A/en not_active Expired - Lifetime
- 1973-10-04 DE DE19732349957 patent/DE2349957A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1429541A (en) | 1976-03-24 |
| DE2349957A1 (de) | 1974-05-02 |
| FR2202398A1 (OSRAM) | 1974-05-03 |
| JPS4992905A (OSRAM) | 1974-09-04 |
| FR2202398B1 (OSRAM) | 1979-05-04 |
| US3840818A (en) | 1974-10-08 |