US 8,948,569 B2Granted

Multiple outlet digital video recording system

AssigneeTiVo Inc.

InventorsJames M. Barton, Roderick James McInnis, Alan S. Moskowitz, Andrew Martin Goodman, Ching Tong Chow, Jean Swey Kao

Life of this patent

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Abstract

A multimedia time warping system allows a user to store selected multimedia data streams while the user is simultaneously watching or reviewing other multimedia data. Data streams are converted to digital streams for internal transfer and manipulation. A parser and event buffer decouple the CPU from having to parse the digital stream. Video segments are stored on a storage device and when data is requested for display, its video segments are extracted from the storage device and sent to a decoder that converts them into display output signals and delivers the display output signals to a display.

Claims33

Dependent claims

A method for a digital video recorder, comprising the steps of:

receiving at least one multimedia program from at least one input module;
storing a plurality of multimedia programs in digital form on at least one storage device;
wherein at least one previously recorded multimedia program is selected from the at least one storage device;
simultaneously retrieving for play back a video segment from the at least one selected previously recorded multimedia program and a video segment from a multimedia program whose storage is in progress using video segment identifying information generated by the digital video recorder for at least one video segment in the at least one selected previously recorded multimedia program and video segment identifying information generated by the digital video recorder for at least one video segment in the multimedia program whose storage is in progress to cause delivery of selected video segments to an output subsystem, the digital video recorder automatically generating video segment identifying information for specific video segments in multimedia programs;
and
wherein the simultaneously retrieving for play back step allows playback rate and direction of each multimedia program to be controlled individually and simultaneously to perform at least one of:
fast forward, rewind, pause, or play functions.

4 more elements

An apparatus for a digital video recorder, comprising:

at least one input section, the at least one input section receiving at least one multimedia program;
a subsystem, implemented at least partially in hardware, that stores a plurality of multimedia programs in digital form on at least one storage device;
wherein at least one previously recorded multimedia program is selected from the at least one storage device;
a subsystem, implemented at least partially in hardware, that simultaneously retrieves for play back a video segment from the at least one selected previously recorded multimedia program and a video segment from a multimedia program whose storage is in progress using video segment identifying information generated by the digital video recorder for at least one video segment in the at least one selected previously recorded multimedia program and video segment identifying information generated by the digital video recorder for at least one video segment in the multimedia program whose storage is in progress to cause delivery of selected video segments to an output subsystem, the digital video recorder automatically generating video segment identifying information for specific video segments in multimedia programs;
and
wherein the simultaneously retrieving for play back subsystem allows playback rate and direction of each multimedia program to be controlled individually and simultaneously to perform at least one of:
fast forward, rewind, pause, or play functions.

4 more elements

A non-transitory computer-readable medium storing one or more sequences of instructions for a digital video recorder, which instructions, when executed by one or more processors, cause the one or more processors to perform:

receiving at least one multimedia program from at least one input module;
storing a plurality of multimedia programs in digital form on at least one storage device;
wherein at least one previously recorded multimedia program is selected from the at least one storage device;
simultaneously retrieving for play back a video segment from the at least one selected previously recorded multimedia program and a video segment from a multimedia program whose storage is in progress using video segment identifying information generated by the digital video recorder for at least one video segment in the at least one selected previously recorded multimedia program and video segment identifying information generated by the digital video recorder for at least one video segment in the multimedia program whose storage is in progress to cause delivery of selected video segments to an output subsystem, the digital video recorder automatically generating video segment identifying information for specific video segments in multimedia programs;
and
wherein the simultaneously retrieving for play back step allows playback rate and direction of each multimedia program to be controlled individually and simultaneously to perform at least one of:
fast forward, rewind, pause, or play functions.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/017,165Filed 3 Sep 2013 · continuation
Priority: 30 Jul 1998
Published: US 2014/0003791 A12 Jan 2014
Granted: 3 Feb 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification46 codes

H04N 5/775
Interface circuits between an apparatus for recording and another apparatus: between a recording apparatus and a television receiver
G06V 20/52
Context or environment of the image: surveillance or monitoring of activities, e.g. for recognising suspicious objects
G11B 27/002
Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel: programmed access in sequence to a plurality of record…
G11B 27/024
Electronic editing of analogue information signals, e.g. audio or video signals: on tapes

Family

Application09/126,071Parent of this continuation · filed 30 Jul 1998
Application09/827,029Parent of this continuation · filed 5 Apr 2001
Application10/081,776Parent of this continuation · filed 20 Feb 2002
Application12/430,781Parent of this continuation · filed 27 Apr 2009
US 2014/0003791 A1Pre-grant publication · published 2 Jan 2014
US 8,544,868 B2Parent of this continuation
US 7,529,465 B2Parent of this continuation
US 6,233,389 B1Parent of this continuation
US 2001/0019658 A1Published application
US 2002/0146233 A1Published application
US 2009/0305821 A1Published application
US 8,948,569 B2This patent

From the US filing history. Foreign family members aren’t listed.