US4845561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Field interleaving compatible high definition television transmission system
Assignee: US Philips Corp
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Filing: 1988-08-25
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Granted: 1989-07-04
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Expires: 2008-08-25
Abstract
Abstract In a system for transmitting and receiving a television signal via a transmission channel having 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, 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, so that a higher temporal resolution is possible on display of the television signal.
Inventors
- 👤 Terence Doyle
- 👤 Franciscus W. P. Vreeswijk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:24
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: 35
Claim 1
Independent Claim
103 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 comprising 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, wherein the transmitting section further includes an interleaving circuit for generating a field to be transmitted by interleaving between sampling values of a sampled field of the television signal and sampling values of at least one further sampled field of the television signal having mutually different shifted sampling patterns.
Claim 2
Independent Claim
103 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 comprising 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, wherein the transmitting section further includes an interleaving circuit for generating a field to be transmitted by interleaving between sampling values of a sampled field of the television signal and sampling values of at least one further sampled field of the television signal having mutually different shifted sampling patterns.
Claim 3
Dependent Claim
53 words
A system as claimed in claim 1 wherein said interleaving circuit generates 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 and sampling values of at least one further line of the same field.
Claim 4
Dependent Claim
24 words
A system as claimed in claim 2 wherein there are more than four different sampling patterns shifted field-sequentially at least in the horizontal direction.
Claim 5
Dependent Claim
22 words
A system as claimed in claim 2 wherein there are eight different sampling patterns field-sequentially shifted at least in the horizontal direction.
Claim 6
Dependent Claim
39 words
A receiving section for a system as claimed in claim 2 wherein said receiving section further comprises: a de-interleaving circuit for performing operations which are the inverse of the operations effected by the interleaving circuit in the transmitting section.
Claim 7
Dependent Claim
39 words
A receiving section for a system as claimed in claim 2 wherein said receiving section includes a de-interleaving circuit for performing an operation which is the inverse of the operation effected by the interleaving circuit in said transmitting section.
Claim 8
Dependent Claim
83 words
A receiver section as claimed in claim 6 further including a mixer circuit having a plurality of television signal inputs for supplying thereto television signals each having another distribution of spatial 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, wherein one of the television signal inputs of the mixer circuit is coupled to an output of the de-interleaving circuit.
Claim 9
Dependent Claim
83 words
A receiver section as claimed in claim 6 further including a mixer circuit having a plurality of television signal inputs for supplying thereto television signals each having another distribution of 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 within a television signal to be displayed, wherein one of the television signal inputs of the mixer circuit is coupled to an output of the de-interleaving circuit.
Claim 10
Dependent Claim
99 words
A system as claimed in claim 1, the transmitting section further comprising: 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 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 mxier circuit is coupled to an output of the interleaving circuit.
Claim 11
Dependent Claim
24 words
A system as claimed in claim 9 wherein there are more than four different sampling patterns shifted field-sequentially at least in the horizontal direction.
Claim 12
Dependent Claim
22 words
A system as claimed in claim 9 wherein there are eight different sampling patterns field-sequentially shifted at least in the horizontal direction.
Claim 13
Dependent Claim
39 words
A receiving section for a system as claimed in claim 9 wherein said receiving section further comprises: a de-interleaving circuit for performing operations which are the inverse of the operations effected by the interleaving circuit in the transmitting section.
Claim 14
Dependent Claim
39 words
A receiving section for a system as claimed in claim 9 wherein said receiving section includes a de-interleaving circuit for performing an operation which is the inverse of the operation effected by the interleaving circuit in said transmitting section.
Claim 15
Dependent Claim
83 words
A receiver section as claimed in claim 13 further including a mixer circuit having a plurality of television signal inputs for supplying thereto television signals each having another distribution of spatial 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, wherein one of the television signal inputs of the mixer circuit is coupled to an output of the de-interleaving circuit.
Claim 16
Dependent Claim
83 words
A receiver section as claimed in claim 13 further including a mixer circuit having a plurality of television signal inputs for supplying thereto television signals each having another distribution of 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 within a television signal to be displayed, wherein one of the television signal inputs of the mixer circuit is coupled to an output of the de-interleaving circuit.
Claim 17
Dependent Claim
99 words
A system as claimed in claim 1, the transmitting section further comprising: 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 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 interleaving circuit.
Claim 18
Dependent Claim
24 words
A system as claimed in claim 16 wherein there are more than four different sampling patterns shifted field-sequentially at least in the horizontal direction.
Claim 19
Dependent Claim
22 words
A system as claimed in claim 16 wherein there are eight different sampling patterns field-sequentially shifted at least in the horizontal direction.
Claim 20
Dependent Claim
39 words
A receiving section for a system as claimed in claim 16 wherein said receiving section further comprises: a de-interleaving circuit for performing operations which are the inverse of the operations effected by the interleaving circuit in the transmitting section.
Claim 21
Dependent Claim
39 words
A receiving section for a system as claimed in claim 16 wherein said receiving section includes a de-interleaving circuit for performing an operation which is the inverse of the operation effected by the interleaving circuit in said transmitting section.
Claim 22
Dependent Claim
83 words
A receiver section as claimed in claim 20 further including a mixer circuit having a plurality of television signal inputs for supplying thereto television signals each having another distribution of spatial 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, wherein one of the television signal inputs of the mixer circuit is coupled to an output of the de-interleaving circuit.
Claim 23
Dependent Claim
24 words
A system as claimed in claim 1 wherein there are more than four different sampling patterns shifted field-sequentially at least in the horizontal direction.
Claim 24
Dependent Claim
22 words
A system as claimed in claim 1 wherein there are eight different sampling patterns field-sequentially shifted at least in the horizontal direction.
Claim 25
Dependent Claim
39 words
A receiving section for a system as claimed in claim 1 wherein said receiving section includes a de-interleaving circuit for performing an operation which is the inverse of the operation effected by the interleaving circuit in said transmitting section.
Claim 26
Dependent Claim
83 words
A receiver section as claimed in claim 24 further comprising a mixer circuit having a plurality of television signal inputs for supplying thereto television signals each having another distribution of spatial 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, wherein one of the television signal inputs of the mixer circuit is coupled to an output of the de-interleaving circuit.
Claim 27
Dependent Claim
83 words
A receiver section as claimed in claim 24 further including a mixer circuit having a plurality of television signal inputs for supplying thereto television signals each having another distribution of 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 within a television signal to be displayed, wherein one of the television signal inputs of the mixer circuit is coupled to an output of the de-interleaving circuit.
Claim 28
Independent Claim
88 words
A system for transmitting a television signal via a transmission channel, comprising 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, wherein the transmitting section further includes an interleaving circuit for generating a field to be transmitted by interleaving between sampling values of a sampled field of the television signal and sampling values of at least one further sampled field of the television signal having mutually different shifted sampling patterns.
Claim 29
Independent Claim
88 words
A system for transmitting a television signal via a transmission channel, comprising 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, wherein the transmitting section further includes an interleaving circuit for generating a field to be transmitted by interleaving between sampling values of a sampled field of the television signal and sampling values of at least one further sampled field of the television signal having mutually different shifted sampling patterns.
Claim 30
Dependent Claim
53 words
A system as claimed in claim 27 wherein the interleaving circuit generates 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 and sampling values of at least one further line of the same field.
Claim 31
Independent Claim
87 words
A method of encoding a high definition television signal for generating a compatible television signal comprising sampling each field of the television signal in accordance with a sampling pattern which is shifted field-sequentially at least in the horizontal direction, and further comprising: generating a field of the compatible television signal by field-interleaving between sampling value of a sampled field of the high definition television signal and sampling values of at least one further sampled field of the high definition television signal having mutually different shifted sampling patterns.
Claim 32
Independent Claim
87 words
A method of encoding a high definition television signal for generating a compatible television signal comprising sampling each field of the television signal in accordance with a sampling pattern which is shifted field-sequentially at least in the horizontal direction, and further comprising: generating a field of the compatible television signal by field-interleaving between sampling value of a sampled field of the high definition television signal and sampling values of at least one further sampled field of the high definition television signal having mutually different shifted sampling patterns.
Claim 33
Dependent Claim
59 words
A method as claimed in claim 29, further comprising line-interleaving for generating a line of the compatible television signal by interleaving between sampling values of a line of the sampled field of the high definition television signal or of the field of the compatible television signal, and sampling values of at least one further line of the same field.
Claim 34
Dependent Claim
64 words
A method as claimed in claim 29, further comprising: supplying a movement detection signal which is a measure of an amount of movement in the high definition television signal, and mixing a plurality of television signals each having another distribution of spatial resolution, said mixing being controlled by said movement detection signal, and one of the television signals comprising fields obtained by said field-interleaving.
Claim 35
Dependent Claim
64 words
A method as claimed in claim 29, further comprising: supplying a movement detection signal which is a measure of an amount of movement in the high definition television signal, and mixing a plurality of television signals each having another distribution of temporal resolution, said mixing being controlled by said movement detection signal, and one of the television signals comprising fields obtained by said field-interleaving.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-03 | 1993-01-02 | 1993-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-03 | 1997-01-02 | 1997-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-03 | 2001-01-02 | 2001-07-04 | $7700.00 | Window Closed / Lapsed |