US5646675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for monitoring video program material
Assignee: Airtrax
•
Filing: 1994-06-06
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Granted: 1997-07-08
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Expires: 2014-06-06
Abstract
Abstract Unique digital codes are encoded on a video signal, the codes are retrieved at receivers and precise information concerning the time of occurrence, length, nature and quality of a monitored broadcast at a frame by frame level, is generated. The codes are inserted on scan lines of the video, and vary either on a field-to-field or fame-to-frame basis. The code has a repeating first part having a unique program material identifier indicating the time, date and place of encoding, and has a second portion that varies in a predetermined non-repeating sequence which varies along the entire length of the tape, thereby uniquely identifying each frame of the video program material. Also encoded upon successive frames is a cyclic counter code with a count corresponding to the sequence of the identifier data on successive frames. When the video signal is processed by a receiver, the first portion identifier data from the various frames is mapped into selected memory locations in accordance with the count of the frame as determined by the second portion. Odd and even fields are encoded with complementary bit sequences to assist in processing the encoded data. Whenever the frame sequence is interrupted a data packet is generated representative of the condition encountered. The data packets are accumulated in log files in a memory in the receiver. The log files are transmitted to a data center, as is a copy of the encoded tape. Reports concerning the broadcast are generated.
Inventors
- 👤 Robert C. Copriviza
- 👤 Arnold M. Dubin
- 👤 Edward B. Ackerman
- 👤 Jackson B. Wood
- 👤 Jeffrey S. Eakins
- 👤 David D. Harmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:24
CPC Classifications
H; H04; H04H; H04H60/00; H04H60/35; H04H60/37; H04H20/00; H04H20/12; H04H20/14; H04H60/38; H04H60/40; H04N; H04N7/00; H04N7/08; H04N7/087; H04N7/088; H04N7/0887
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
158 words
A system for monitoring video program material including a source recorder/player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; and a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; wherein said encoder includes interface memory providing storage for code information, and a processor coupled to said interface memory for converting the code information to said monitoring code.
Claim 2
Independent Claim
158 words
A system for monitoring video program material including a source recorder/player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; and a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; wherein said encoder includes interface memory providing storage for code information, and a processor coupled to said interface memory for converting the code information to said monitoring code.
Claim 3
Dependent Claim
152 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring code to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; and further comprising the steps of generating an unencoded video program signal stream from an unencoded storage media and applying the unencoded video program signal stream to the encoder.
Claim 4
Dependent Claim
152 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring code to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; and further comprising the steps of generating an unencoded video program signal stream from an unencoded storage media and applying the unencoded video program signal stream to the encoder.
Claim 5
Independent Claim
168 words
A system for monitoring video program material including a source recorder/player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; and a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; wherein the source recorder/player defines a first source recorder/player, and said encoder includes a second recorder/player for recording the source video signal stream containing both the source video signal stream and the monitoring code applied by said encoder.
Claim 6
Independent Claim
168 words
A system for monitoring video program material including a source recorder/player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; and a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; wherein the source recorder/player defines a first source recorder/player, and said encoder includes a second recorder/player for recording the source video signal stream containing both the source video signal stream and the monitoring code applied by said encoder.
Claim 7
Independent Claim
156 words
A system for monitoring video program material including a source recorder/player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; and a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; wherein said receiver includes means for receiving a broadcast program signal and for generating a received video program signal stream corresponding to said broadcast program signal.
Claim 8
Independent Claim
156 words
A system for monitoring video program material including a source recorder/player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; and a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; wherein said receiver includes means for receiving a broadcast program signal and for generating a received video program signal stream corresponding to said broadcast program signal.
Claim 9
Independent Claim
147 words
A system for monitoring video program material including a source recorded player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; and a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; wherein said receiver provides non-scanning, continuous monitoring of each of a predetermined plurality of broadcast frequencies.
Claim 10
Independent Claim
147 words
A system for monitoring video program material including a source recorded player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; and a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; wherein said receiver provides non-scanning, continuous monitoring of each of a predetermined plurality of broadcast frequencies.
Claim 11
Independent Claim
196 words
A system for monitoring video program material including a source recorder/player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; and a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; wherein each of said frames includes a plurality of interlaced odd and even scan lines, and said encoder includes applying means for applying the monitoring code to a predetermined even scan line and for applying the logical complement of the monitoring code to a predetermined odd scan line which is adjacent to the predetermined even scan line in the sequence of scan lines in each frame.
Claim 12
Independent Claim
196 words
A system for monitoring video program material including a source recorder/player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; and a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; wherein each of said frames includes a plurality of interlaced odd and even scan lines, and said encoder includes applying means for applying the monitoring code to a predetermined even scan line and for applying the logical complement of the monitoring code to a predetermined odd scan line which is adjacent to the predetermined even scan line in the sequence of scan lines in each frame.
Claim 13
Independent Claim
146 words
A system for monitoring video program material including a source recorder/player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; and a plurality of substantially identical, redundant field receivers each including at least one of said decoders.
Claim 14
Independent Claim
146 words
A system for monitoring video program material including a source recorder/player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; and a plurality of substantially identical, redundant field receivers each including at least one of said decoders.
Claim 15
Independent Claim
143 words
A system for monitoring video program material including a source recorder/player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; and a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; wherein said decoder includes a log memory for storing video state data signals.
Claim 16
Independent Claim
143 words
A system for monitoring video program material including a source recorder/player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; and a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; wherein said decoder includes a log memory for storing video state data signals.
Claim 17
Dependent Claim
52 words
A system for monitoring video program material as claimed in claim 8 wherein said decoder includes signal stream status detection means for generating signal status fault signals upon degradation of the received video program signal stream below predetermined quality limits, and for applying said signal status fault signals to said log memory.
Claim 18
Dependent Claim
66 words
A system for monitoring video program material as claimed in claim 8 wherein said decoder includes frame sequence analysis means for detecting the presence and absence of said monitoring code, for comparing the detected monitoring code with a predetermined correct code sequence, and for generating and applying to said log memory sequence deviation signals when the detected monitoring code differs from the predetermined correct code sequence.
Claim 19
Dependent Claim
78 words
A system for monitoring video program material as claimed in claim 10 wherein said deviation signals include a prediscontinuity frame identification signal uniquely identifying the frame of the received video program signal stream occurring immediately before said detected monitoring code differs from the predetermined correct code sequence, and a post-discontinuity frame identification signal uniquely identifying the frame of said received video program signal stream occurring immediately after said detected monitoring code corresponds with the predetermined correct code sequence.
Claim 20
Independent Claim
147 words
A system for monitoring video program material including a source recorder/player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; and report collection and compilation means for reporting of said reception information of the received broadcast program signal.
Claim 21
Independent Claim
147 words
A system for monitoring video program material including a source recorder/player for recording a source video program signal stream as a sequence of frames, each of the frames including a plurality of scan lines, said system comprising: an encoder that generates a monitoring code and applies the monitoring code to each frame of the source video signal stream, said monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each frame; a decoder that detects said monitoring code included on each frame of the source video signal stream; a receiver that monitors a broadcast program signal corresponding to the source video signal stream, determines reception information, and associates said reception information with specified ones of the frames using said monitoring code; and report collection and compilation means for reporting of said reception information of the received broadcast program signal.
Claim 22
Dependent Claim
154 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring code to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; and eliminating DC-offset and noise from the encoded video program signal stream by clamping a video program signal of the unencoded video program signal stream to generate a first clamped signal.
Claim 23
Dependent Claim
154 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring code to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; and eliminating DC-offset and noise from the encoded video program signal stream by clamping a video program signal of the unencoded video program signal stream to generate a first clamped signal.
Claim 24
Dependent Claim
141 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring code to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; and synchronously adding the monitoring code to the first clamped signal as a sequence of digital data bytes.
Claim 25
Dependent Claim
141 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring code to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; and synchronously adding the monitoring code to the first clamped signal as a sequence of digital data bytes.
Claim 26
Dependent Claim
145 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring code to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; and eliminating DC-offset and noise from the first clamped signal by clamping the first clamped signal during addition of the monitoring code.
Claim 27
Dependent Claim
145 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring code to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; and eliminating DC-offset and noise from the first clamped signal by clamping the first clamped signal during addition of the monitoring code.
Claim 28
Dependent Claim
147 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring code to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; digitally storing code information in an interface memory; accessing the interface memory using a processor; and converting the code information to the monitoring code.
Claim 29
Dependent Claim
147 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring code to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; digitally storing code information in an interface memory; accessing the interface memory using a processor; and converting the code information to the monitoring code.
Claim 30
Dependent Claim
143 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring code to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; and receiving a broadcast program signal and generating the encoded video program signal stream corresponding to the broadcast program signal.
Claim 31
Dependent Claim
143 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring code to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; and receiving a broadcast program signal and generating the encoded video program signal stream corresponding to the broadcast program signal.
Claim 32
Dependent Claim
136 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring codes to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; and non-scanning, continuous monitoring of each of a predetermined plurality of broadcast frequencies.
Claim 33
Dependent Claim
136 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring codes to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; and non-scanning, continuous monitoring of each of a predetermined plurality of broadcast frequencies.
Claim 34
Dependent Claim
149 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring code to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; and simultaneously registering and decoding the video program signal stream on a plurality of redundant field receivers, each of the receivers including at least one decoder.
Claim 35
Dependent Claim
149 words
An encoding/decoding method for monitoring video program material, comprising the steps of: recording, on a program recorder/player, a video program signal stream segmented into frames, and each of the frames comprising a plurality of scan lines; generating, by means of an encoder, a monitoring code having a program-identifying code portion common to all frames and a frame-identifying code portion unique to each of the frames; applying the monitoring code to the sequence of frames to produce an encoded video program signal stream; receiving a broadcast program signal corresponding to the video program signal stream and determining reception information; detecting the monitoring code included on each of the frames and associating the reception information with specified ones of the frames using the monitoring code; and simultaneously registering and decoding the video program signal stream on a plurality of redundant field receivers, each of the receivers including at least one decoder.
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USPTO Annuity & Maintenance Windows
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| 7.5 Years (Year 8) | 2004-07-07 | 2005-01-06 | 2005-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-07 | 2009-01-06 | 2009-07-08 | $7700.00 | Window Closed / Lapsed |