ES482283A1 - Una disposicion de circuito para detectar la fase de conmu- tacion de trenes de ondas. - Google Patents
Una disposicion de circuito para detectar la fase de conmu- tacion de trenes de ondas.Info
- Publication number
- ES482283A1 ES482283A1 ES482283A ES482283A ES482283A1 ES 482283 A1 ES482283 A1 ES 482283A1 ES 482283 A ES482283 A ES 482283A ES 482283 A ES482283 A ES 482283A ES 482283 A1 ES482283 A1 ES 482283A1
- Authority
- ES
- Spain
- Prior art keywords
- detecting
- circuit arrangement
- signal
- switching phase
- phase
- 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
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/87—Regeneration of colour television signals
- H04N9/873—Regeneration of colour television signals for restoring the colour component sequence of the reproduced chrominance signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/7908—Suppression of interfering signals at the reproducing side, e.g. noise
- H04N9/7917—Suppression of interfering signals at the reproducing side, e.g. noise the interfering signals being cross-talk signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
- H04N9/83—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal
- H04N9/84—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only the recorded chrominance signal occupying a frequency band under the frequency band of the recorded brightness signal the recorded signal showing a feature, which is different in adjacent track parts, e.g. different phase or frequency
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
- Television Signal Processing For Recording (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
Una disposición de circuito para detectar la fase de conmutación de trenes de ondas que presentan periódicamente una diferencia de fase fija con relación a una condición normal, en particular los impulsos de sincronización de color de una señal de televisión en color grabada en un aparato grabador de video-cinta, cuya paridad cambia de campo a campo, seguido por un circuito de compensación, en el que son combinados los impulsos que han sido devueltos a la condición normal, por ejemplo, sumados, en forma directa, y en el que son retardados en el intervalo de muestreo, de manera que, en el caso de un ritmo de conmutación correcto, el valor de amplitud es máximo, caracterizada porque la señal directa y la señal de retardo son combinadas en otro paso de tal modo que en el caso de un ritmo de conmutación incorrecto, ocurren valores máximos de amplitud, y porque las señales de salida del primero y del segundo pasos de combinación son aplicadas a las entradas de un comparador, por ejemplo, un pasoamplificador diferencial, a través de filtros de pasabajos, cuyo comparador suministra una señal de corrección cuando los impulsos tienen la relación de fase incorrecta.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2830168A DE2830168C2 (de) | 1978-07-08 | 1978-07-08 | Schaltungsanordnung zum Detektieren einer Umschalt-Phasenlage |
Publications (1)
Publication Number | Publication Date |
---|---|
ES482283A1 true ES482283A1 (es) | 1980-03-01 |
Family
ID=6043935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES482283A Expired ES482283A1 (es) | 1978-07-08 | 1979-07-06 | Una disposicion de circuito para detectar la fase de conmu- tacion de trenes de ondas. |
Country Status (11)
Country | Link |
---|---|
US (1) | US4277795A (es) |
JP (1) | JPS5514793A (es) |
AT (1) | AT378650B (es) |
AU (1) | AU527628B2 (es) |
CA (1) | CA1140256A (es) |
DE (1) | DE2830168C2 (es) |
ES (1) | ES482283A1 (es) |
FR (1) | FR2430702A1 (es) |
GB (1) | GB2027315B (es) |
IT (1) | IT1118796B (es) |
NL (1) | NL7905202A (es) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56112190A (en) * | 1980-02-08 | 1981-09-04 | Sanyo Electric Co Ltd | Signal recording circuit |
JPS57124986A (en) * | 1981-01-26 | 1982-08-04 | Victor Co Of Japan Ltd | Color video signal reproducing device |
DE3939520A1 (de) * | 1989-11-30 | 1991-06-06 | Nokia Unterhaltungselektronik | Schaltung zum rueckgewinnen des chroma-signales |
DE4115213A1 (de) * | 1991-05-10 | 1992-11-12 | Nokia Deutschland Gmbh | Kammfilterschaltung im wiedergabeseitigen farbartkanal eines videorecorders |
DE4415981A1 (de) * | 1994-05-06 | 1995-11-09 | Thomson Brandt Gmbh | Farbfernsehempfänger mit PALplus-Betrieb |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3721753A (en) * | 1970-10-26 | 1973-03-20 | Sony Corp | Color television receiver |
DE2216564C3 (de) * | 1971-04-14 | 1979-09-06 | N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) | Farbfernsehempfänger-Schaltung zur Gewinnung der richtigen Schaltphase eines Farbartsignals |
GB1428973A (en) * | 1972-07-20 | 1976-03-24 | Emi Ltd | Circuit arrangements for colour television receivers |
GB1541228A (en) * | 1975-05-20 | 1979-02-28 | Rca Corp Pal | Alternate line colour phase detector |
US4024571A (en) * | 1975-08-14 | 1977-05-17 | Rca Corporation | Synchronizing system employing burst crossover detection |
IT1077241B (it) * | 1976-06-30 | 1985-05-04 | Rca Corp | Sistema per la registrazione di informazioni rappresentative dei colori,contenute nei segnali televisivi compositi |
-
1978
- 1978-07-08 DE DE2830168A patent/DE2830168C2/de not_active Expired
-
1979
- 1979-07-02 AU AU48580/79A patent/AU527628B2/en not_active Ceased
- 1979-07-04 NL NL7905202A patent/NL7905202A/nl not_active Application Discontinuation
- 1979-07-05 CA CA000331187A patent/CA1140256A/en not_active Expired
- 1979-07-05 GB GB7923413A patent/GB2027315B/en not_active Expired
- 1979-07-05 JP JP8449179A patent/JPS5514793A/ja active Granted
- 1979-07-05 IT IT68409/79A patent/IT1118796B/it active
- 1979-07-05 AT AT0468279A patent/AT378650B/de not_active IP Right Cessation
- 1979-07-06 ES ES482283A patent/ES482283A1/es not_active Expired
- 1979-07-06 FR FR7917637A patent/FR2430702A1/fr active Granted
- 1979-07-09 US US06/055,947 patent/US4277795A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU4858079A (en) | 1980-01-17 |
DE2830168A1 (de) | 1980-01-17 |
GB2027315B (en) | 1982-11-17 |
IT7968409A0 (it) | 1979-07-05 |
ATA468279A (de) | 1985-01-15 |
FR2430702A1 (fr) | 1980-02-01 |
CA1140256A (en) | 1983-01-25 |
IT1118796B (it) | 1986-03-03 |
JPS5514793A (en) | 1980-02-01 |
AU527628B2 (en) | 1983-03-17 |
JPS6144438B2 (es) | 1986-10-02 |
NL7905202A (nl) | 1980-01-10 |
DE2830168C2 (de) | 1985-10-24 |
FR2430702B1 (es) | 1984-12-14 |
AT378650B (de) | 1985-09-10 |
US4277795A (en) | 1981-07-07 |
GB2027315A (en) | 1980-02-13 |
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