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EP0613298A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Video playback device with multiple access

Assignee: Verizon Laboratories Inc
•
Filing: 1993-12-23
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Granted: —
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Expires: 2013-12-23
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Abstract

Abstract s7 An electronic video record and playback assembly (11) operates in a recording mode to store input material in a solid state memory unit (12), and operates in a playback mode to reproduce the prerecorded material in response to user playback requests. The assembly (11) in- dudes direct memory access (DMA) devices which serve as the interface (14) to the memory unit (12), and a signal compressor (17) for reducing the input material for digital storage. The assembly (11) is capable of accommodating multiple playback requests via the DMA devices such that plural reproduction of shared material may be viewed simultaneously.

Inventors

  • 👤 Mehmet Mustafa

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 19:26
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/907; H04N5/91; H04N5/92; H04N5/926; H04N5/9261; H04N7/00; H04N7/16; H04N7/173; H04N7/17309; H04N7/17336; H04N5/84; H04N5/85

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 74 words
A system for distributing information, comprising: memory means for storing information; control means responsive to a user request for issuing a control signal; output means for receiving an output signal and distributing said output signal; and interface means coupled to said control means and said output means for accessing information in said memory means in accordance with the control signal, and transferring stored information being accessed to said output means as the output signal.
Claim 2
Independent Claim 74 words
A system for distributing information, comprising: memory means for storing information; control means responsive to a user request for issuing a control signal; output means for receiving an output signal and distributing said output signal; and interface means coupled to said control means and said output means for accessing information in said memory means in accordance with the control signal, and transferring stored information being accessed to said output means as the output signal.
Claim 3
Dependent Claim 20 words
The system as recited in claim 1 wherein said interface means includes: a plurality of direct memory access (DMA) devices.
Claim 4
Dependent Claim 19 words
The system as recited in claim 2 wherein said memory means includes: a solid state random access memory (RAM).
Claim 5
Dependent Claim 53 words
The system as recited in claim 2 further comprising: A/D signal conversion means for executing an analog to digital conversion of an input analog signal; and compression means coupled to said signal conversion means for compressing the digital representation of said analog signal, and forwarding the compressed digital representation to said memory means.
Claim 6
Dependent Claim 57 words
The system as recited in claim 4 further comprising: expansion means coupled to said interface means for decompressing signals being transferred by said interface means; and D/A signal conversion means coupled to said expansion means for executing a digital-to-analog conversion of the decompressed signals, and forwarding the converted signals to said output means as the output signal.
Claim 7
Dependent Claim 27 words
The system as recited in claim 5 wherein the output means comprises: means for modulating the output signal and forwarding the modulated signal to a distribution network.

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