US4989104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for recording and quickly retrieving video signal parts on a magnetic tape
Assignee: Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
•
Filing: 1990-03-07
•
Granted: 1991-01-29
•
Expires: 2010-03-07
Abstract
Abstract In an apparatus for recording and quickly retrieving video signal parts on a magnetic tape, during recording information about the local position of each video signal part is automatically stored in a memory associated with the apparatus, which is designed for storing identifying information for a large number of magnetic tape cassettes. The retrieval of each video signal part on each of the cassettes can be effected substantially without delay in the quick rewind mode of operation.
Inventors
- 👤 Reinhard Schulein
- 👤 Ernst Bratenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:47
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/34; G04; G04G; G04G15/00; G04G15/006; G11B15/00; G11B15/02; G11B15/026; G11B15/675; G11B15/68; G11B15/689; G11B27/002; G11B27/102; G11B27/107; G11B27/11; H; H04; H04N; H04N7/00; H04N7/08; H04N7/087; H04N7/088; H04N7/0887; G11B2220/00; G11B2220/40; G11B2220/41; G11B2220/60; G11B2220/65; G11B2220/90
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
222 words
An apparatus for recording, identifying and quickly retrieving programs or other video signal parts recorded on a magnetic tape, comprising: a video cassette recorder, an operating keyboard, a comparator, a memory for storing information about the respective locations of video signal parts on magnetic tape in a cassette, and a microprocessor and interconnecting means interconnecting said keyboard, comparator, microprocessor, and memory, operable during tape transport to compare information identifying a desired signal part entered through the keyboard with information corresponding to the instantaneous tape position, characterized in that said memory is arranged for storing information about the respective locations of a plurality of video signal parts on magnetic tapes contained in a plurality of magnetic tape cassettes, a given storage area of the memory is identified for storing information about a given one of said magnetic tape cassettes, during recording, said microprocessor operates as means for automatically storing information about the locations of video signal parts at the given storage area of the memory corresponding to a given cassette identification data entered through the keyboard, and for retrieving a desired video signal part, during transport in a quick wind mode information corresponding to the instantaneous tape position is compared in the comparator with information about the location of a video signal part corresponding to data identifying said part entered through said keyboard.
Claim 2
Independent Claim
222 words
An apparatus for recording, identifying and quickly retrieving programs or other video signal parts recorded on a magnetic tape, comprising: a video cassette recorder, an operating keyboard, a comparator, a memory for storing information about the respective locations of video signal parts on magnetic tape in a cassette, and a microprocessor and interconnecting means interconnecting said keyboard, comparator, microprocessor, and memory, operable during tape transport to compare information identifying a desired signal part entered through the keyboard with information corresponding to the instantaneous tape position, characterized in that said memory is arranged for storing information about the respective locations of a plurality of video signal parts on magnetic tapes contained in a plurality of magnetic tape cassettes, a given storage area of the memory is identified for storing information about a given one of said magnetic tape cassettes, during recording, said microprocessor operates as means for automatically storing information about the locations of video signal parts at the given storage area of the memory corresponding to a given cassette identification data entered through the keyboard, and for retrieving a desired video signal part, during transport in a quick wind mode information corresponding to the instantaneous tape position is compared in the comparator with information about the location of a video signal part corresponding to data identifying said part entered through said keyboard.
Claim 3
Dependent Claim
31 words
An apparatus as claimed in claim 1, characterized in that said microprocessor and interconnecting means automatically store data in the memory identifying the recording start time of the video signal part.
Claim 4
Dependent Claim
31 words
An apparatus as claimed in claim 1, characterized in that said microprocessor and interconnecting means automatically store data identifying the respective recording start and stop times of the video signal part.
Claim 5
Dependent Claim
30 words
An apparatus as claimed in claim 1, characterized in that the information about the location of each respective video signal part is a unique identifier for said video signal part.
Claim 6
Dependent Claim
22 words
An apparatus as claimed in claim 4, characterized in that said unique identifiers are generated automatically by said microprocessor and interconnecting means.
Claim 7
Dependent Claim
30 words
An apparatus as claimed in claim 4, characterized in that said microprocessor and interconnecting means are arranged for storing information identifying a given signal part, entered manually via said keyboard.
Claim 8
Dependent Claim
26 words
An apparatus as claimed in claim 1, characterized in that the storage area corresponding to a given cassette is identified by data entered via said keyboard.
Claim 9
Dependent Claim
30 words
An apparatus as claimed in claim 1, characterized in that said microprocessor is arranged automatically to assign sequence numbers associated with respective stored information corresponding to each of said locations.
Claim 10
Dependent Claim
42 words
An apparatus as claimed in claim 1, characterized in that said microprocessor, interconnecting means and memory are arranged to store information identifying the location of arbitrary scenes within a given video signal part, in response to manual data entry through said keyboard.
Claim 11
Dependent Claim
22 words
An apparatus as claimed in claim 9, comprising means for displaying contents of said memory as a list on a display screen.
Claim 12
Dependent Claim
23 words
An apparatus as claimed in claim 10, characterized in that a video signal part to be displayed is selected by an optical marker.
Claim 13
Dependent Claim
22 words
An apparatus as claimed in claim 1, comprising means for displaying contents of said memory as a list on a display screen.
References Cited (Backward Citations)
DE2700801A1
Cited
JPS5552575A
Cited
US4338644A
Cited
NL7901801A
Cited
US4499509A
Cited
US4305101A
Cited
DE2939912A1
Cited
EP0029946A1
Cited
US4516166A
Cited
JPS59116977A
Cited
JPS59116976A
Cited
JPS6098544A
Cited
US4644425A
Cited
EP0169597A1
Cited
US4591931A
Cited
US4654727A
Cited
US4654727B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-01-28 | 1994-07-30 | 1995-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-28 | 1998-07-30 | 1999-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-28 | 2002-07-30 | 2003-01-29 | $7700.00 | Window Closed / Lapsed |