Patent EP0252563A2 successfully refreshed from Google Patents.
EP0252563A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
System for transmitting and receiving a television signal, and also a transmitting section and a receiving section for said system
Assignee: Koninklijke Philips NV
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Filing: 1987-07-03
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Granted: —
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Expires: 2007-07-03
Abstract
Abstract In a system for transmitting and receiving a television signal via a transmission channel comprising at least a transmitting section (Fig 1) and a receiving section (Fig 2), the transmitting section including a sampling circuit (33) for sampling each field of the television signal in accordance with a sampling pattern which is shifted field-sequentially at least in the horizontal direction, the transmitting section further includes a field interleaving circuit (23) for generating a field to be transmitted by interleaving between sampling values of a sampled field of the television signal sampling values of at least one further sampled field of the television signal having mutually different shifted sampling patterns, so that a higher temporal resolution is possible on display of the television signal.
Inventors
- 👤 Terence Doyle
- 👤 Franciscus Wilhelmus Petrus Vreeswijk
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 19:43
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/44; H04N7/00; H04N7/12; H04N7/122; H04N7/125; H04N7/015; H04N7/0152
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
105 words
A system for transmitting and receiving a television signal via a transmission channel, comprising at least a transmitting section and a receiving section, the transmitting section including a sampling circuit for sampling each field of the television signal in accordance with a sampling pattern which is shifted field-sequentially at least in the horizontal direction, characterized in that the transmitting section further includes a field interleaving circuit for generating a field to be transmitted by interleaving between sampling values of a sampled field of the television signal sampling values of at least one further sampled field of the television signal having mutually different shifted sampling patterns.
Claim 2
Independent Claim
105 words
A system for transmitting and receiving a television signal via a transmission channel, comprising at least a transmitting section and a receiving section, the transmitting section including a sampling circuit for sampling each field of the television signal in accordance with a sampling pattern which is shifted field-sequentially at least in the horizontal direction, characterized in that the transmitting section further includes a field interleaving circuit for generating a field to be transmitted by interleaving between sampling values of a sampled field of the television signal sampling values of at least one further sampled field of the television signal having mutually different shifted sampling patterns.
Claim 3
Dependent Claim
69 words
A system as claimed in Claim 1, characterized in that the transmitting section further includes a line interleaving circuit arranged in series with the field interleaving circuit, for generating a line to be transmitted by interleaving between sampling values of a line of the sampled field of the television signal or of the field to be transmitted sampling values of at least one further line of the same field.
Claim 4
Dependent Claim
105 words
A system as claimed in Claim 1 or 2, the transmitting section further including: - a movement detection circuit having an output for supplying a signal which is a measure of an amount of movement in the television signal, and a mixer circuit having a plurality of television signal inputs for supplying thereto television signals each having another distribution of spatial and/or temporal resolution, said mixer circuit further having a control signal input coupled to the output of the movement detection circuit, characterized in that one of the television signal inputs of the mixer circuit is coupled to an output of the field interleaving circuit.
Claim 5
Independent Claim
29 words
A system as claimed in anyone of the preceding Claims, characterized in that there are more than four different sampling patterns shifted field-sequentially at least in the horizontal direction.
Claim 6
Dependent Claim
24 words
A system as claimed in Claim 4, characterized in that there are eight different sampling patterns field-sequentially shifted at least in the horizontal direction.
Claim 7
Dependent Claim
14 words
A transmitting section for a system as claimed in anyone of the preceding Claims.
Claim 8
Dependent Claim
46 words
A receiving section for a system as claimed in Claim 1, 2, 3, 4 or 5, characterized in that it includes a field de-interleaving circuit for performing an operation which is the inverse of the operation effected by the field interleaving circuit in the transmitting section.
Claim 9
Dependent Claim
81 words
A receiving section for a system as claimed in Claim 2, 3, 4 or 5, characterized in that it includes: - a line de-interleaving circuit for performing an operation which is the inverse of the operation effected by the line interleaving circuit in the transmitting section, and - a field de-interleaving circuit, arranged in series with the line de-interleaving circuit, for performing an operation which is the inverse of the operation effected by the field interleaving circuit in the transmitting section.
Claim 10
Dependent Claim
90 words
A receiving section as claimed in Claim 7 or 8, further including a mixer circuit having a plurality of television signal inputs for supplying thereto television signals each having another distribution of spatial and/or temporal resolution, said mixer circuit further having a control signal input to which a signal is applied which is a measure of an amount of movement in a television signal to be displayed, characterized in that one of the television signal inputs of the mixer circuit is coupled to an output of the field de-interleaving circuit.
References Cited (Backward Citations)
No citation records indexed.
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