GB1082619A - Wide-band signal-translating channel - Google Patents
Wide-band signal-translating channelInfo
- Publication number
- GB1082619A GB1082619A GB4612765A GB4612765A GB1082619A GB 1082619 A GB1082619 A GB 1082619A GB 4612765 A GB4612765 A GB 4612765A GB 4612765 A GB4612765 A GB 4612765A GB 1082619 A GB1082619 A GB 1082619A
- Authority
- GB
- United Kingdom
- Prior art keywords
- capacitor
- emphasis
- circuit
- diodes
- amplitude
- 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
- 239000003990 capacitor Substances 0.000 abstract 5
- 230000001944 accentuation Effects 0.000 abstract 2
- 230000000295 complement effect Effects 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Abstract
1,082,619. Pre-emphasis of wide band signals; limiters; pulse shaping. WINSTON RESEARCH CORPORATION. Nov. 1, 1965, No. 46127/65. Headings H3T and H4R. A pre-emphasis circuit, e.g. for use in a frequency modulation system or in magnetic recording, comprises, Fig. 2, a circuit consisting of resistors 102 and 106 and capacitor 104, providing the normal accentuation of high frequencies, followed by an amplitude sensitive integrator which attenuates large amplitude signals of high frequency and comprises the resistor 108, capacitors 112 and 114 and oppositely poled diodes 116 and 118. At the receiver a complementary network is used, Fig. 5, in which the amplitude dependent highfrequency emphasis circuit complementing the amplitude sensitive integrator comprises resistors 302 and 322, capacitor 320, and diodes 326 and 328, and the high-frequency de-emphasis, complementing the accentuation of highfrequencies at the transmitter, comprises capacitor 306 and resistor 303. The capacitor 330 provides neutralization for the capacitance of the diodes 326 and 328. An alternative form of network, Fig. 6 (not shown), has the highfrequency emphasis circuit connected across a negative feedback resistor in the emitter of a transistor amplifier stage with the normal deemphasis components connected in the collector circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4612765A GB1082619A (en) | 1965-11-01 | 1965-11-01 | Wide-band signal-translating channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4612765A GB1082619A (en) | 1965-11-01 | 1965-11-01 | Wide-band signal-translating channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1082619A true GB1082619A (en) | 1967-09-06 |
Family
ID=10439951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4612765A Expired GB1082619A (en) | 1965-11-01 | 1965-11-01 | Wide-band signal-translating channel |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1082619A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4290082A (en) | 1976-07-06 | 1981-09-15 | Sony Corporation | Noise and cross-talk elimination in recording and reproducing video signals |
| US4306256A (en) | 1979-03-14 | 1981-12-15 | Rca Corporation | Preemphasis and clipping apparatus for reducing distortions |
-
1965
- 1965-11-01 GB GB4612765A patent/GB1082619A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4290082A (en) | 1976-07-06 | 1981-09-15 | Sony Corporation | Noise and cross-talk elimination in recording and reproducing video signals |
| US4306256A (en) | 1979-03-14 | 1981-12-15 | Rca Corporation | Preemphasis and clipping apparatus for reducing distortions |
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