FR2442562A1 - PAL TV receiver with NTSC reception facility - includes variable phase shift circuit for adjusting tint of NTSC colour signals - Google Patents
PAL TV receiver with NTSC reception facility - includes variable phase shift circuit for adjusting tint of NTSC colour signalsInfo
- Publication number
- FR2442562A1 FR2442562A1 FR7833284A FR7833284A FR2442562A1 FR 2442562 A1 FR2442562 A1 FR 2442562A1 FR 7833284 A FR7833284 A FR 7833284A FR 7833284 A FR7833284 A FR 7833284A FR 2442562 A1 FR2442562 A1 FR 2442562A1
- Authority
- FR
- France
- Prior art keywords
- ntsc
- circuit
- phase shift
- pal
- shift circuit
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/643—Hue control means, e.g. flesh tone control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
A PAL television receiver is modified to receive a video signal comprising on NTSC chrominance sub-carrier and has a variable phase shift circuit (100) for regulating the colour first connected between the video detector (20) and a sub-carrier filter (50). The circuit (100) comprises a series resistor (11) and shunt resonant circuit (17) switched into circuit by a series transistor (120) during the line suppression intervals to vary the phase of the colour burst signals relative to the modulated sub-carrier. The parallel resonant circuit (17) comprises a parallel inductance (13), resistance (14) and capacitance, the latter being formed by a fixed capacitance (15) and a series varactor (1b) controlled by a.d.c. voltage from a variable resistor (7). The transistor (120) is controlled by pulses from the sweep circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7833284A FR2442562A1 (en) | 1978-11-24 | 1978-11-24 | PAL TV receiver with NTSC reception facility - includes variable phase shift circuit for adjusting tint of NTSC colour signals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7833284A FR2442562A1 (en) | 1978-11-24 | 1978-11-24 | PAL TV receiver with NTSC reception facility - includes variable phase shift circuit for adjusting tint of NTSC colour signals |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2442562A1 true FR2442562A1 (en) | 1980-06-20 |
Family
ID=9215319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7833284A Withdrawn FR2442562A1 (en) | 1978-11-24 | 1978-11-24 | PAL TV receiver with NTSC reception facility - includes variable phase shift circuit for adjusting tint of NTSC colour signals |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2442562A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3575549A (en) * | 1969-09-17 | 1971-04-20 | Zenith Radio Corp | Hue control circuit |
-
1978
- 1978-11-24 FR FR7833284A patent/FR2442562A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3575549A (en) * | 1969-09-17 | 1971-04-20 | Zenith Radio Corp | Hue control circuit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4240102A (en) | Identification system for SECAM or SECAM/PAL color television receivers | |
US4309719A (en) | Dual standard PAL/SECAM receiver circuitry | |
GB2071458A (en) | Apparatus and method for transmitting a pulse width modulated audio signal on a video signal | |
US4396953A (en) | Color video signal dubbing system for collating the outputs of signal sources | |
US3872497A (en) | Signal translating apparatus for composite signal subject to jitter | |
GB1511898A (en) | Automatic luminance channel bandwidth control apparatus responsive to the amplitude of colour image information | |
US4438451A (en) | Dual-standard SECAM/PAL color TV receiver with automatic control of operating mode | |
GB1267251A (en) | ||
CA1104710A (en) | Television horizontal oscillator frequency control arrangement for use with tape recorder | |
US3969762A (en) | Secam color television receivers employing tunable notch filter in luminance channel | |
KR930006540B1 (en) | Wide band vcr with comb filter switching | |
CA1093203A (en) | Chroma preference control for vir automatic operation | |
US4051518A (en) | Burst gate pulse generator | |
US4173023A (en) | Burst gate circuit | |
US4072983A (en) | SECAM identification circuit | |
US3867010A (en) | Vertical interval reference signal extraction circuit arrangement | |
US4130831A (en) | Color television control circuit for use with a VIR signal | |
FR2442562A1 (en) | PAL TV receiver with NTSC reception facility - includes variable phase shift circuit for adjusting tint of NTSC colour signals | |
KR850002370A (en) | TV receiver | |
CA1128651A (en) | Combined phase shift and filter network in a color video signal processing system employing dynamic flesh tone control | |
EP0064415B1 (en) | Dynamic de-emphasis compensation system | |
US4366498A (en) | I.F. Response control system for a television receiver | |
US4484216A (en) | Method and circuit for dynamic cross color suppression in color television set | |
US4796101A (en) | Automatic FM sideband level control for video recorders | |
US4255758A (en) | Self-adjusting bell filter circuit for use in SECAM coders |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |