MULTIMEDIA SIGNAL PROCESSING SYSTEM

• US 20090269024A1
• Filed: 07/06/2009
• Published: 10/29/2009
• Est. Priority Date: 07/30/1998
• Status: Active Grant

• Current Assignee: TiVo Solutions Inc. (Adeia Inc.)
• Original Assignee: TiVo Inc. (Adeia Inc.)
• Inventors: Barton, James M., Heaton, Kurtis G., Goodman, Andrew Martin, McInnis, Roderick James, Chow, Ching Tong, Kao, Jean Swey, Locket, David
• Granted Patent: US 8,457,476 B2
• Time in Patent Office: Days
• US Class Current: 386/235
• CPC Class Codes: G11B 2220/216 Rewritable discs
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 2220/2575 DVD-RAMs
• CPC Class Codes: G11B 2220/90 Tape-like record carriers
• CPC Class Codes: G11B 27/002 Programmed access in sequence to a plurality of record carriers or indexed parts, e.g. tracks, thereof, e.g. for editing; transfer of record carriers from magazine G11B15/68, G11B17/10; G11B17/22
• CPC Class Codes: G11B 27/024 on tapes G11B27/028, G11B27/029 take precedence
• CPC Class Codes: G11B 27/031 Electronic editing of digitised analogue information signals, e.g. audio or video signals
• CPC Class Codes: G11B 27/032 on tapes G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: H04N 21/252 Processing of multiple end-users' preferences to derive collaborative data
• CPC Class Codes: H04N 21/4147 PVR [Personal Video Recorder] H04N5/76 takes precedence ; arrangements for broadcast with accumulation-type receivers H04H20/40
• CPC Class Codes: H04N 21/4263 involving specific tuning arrangements, e.g. two tuners
• CPC Class Codes: H04N 21/4333 Processing operations in response to a pause request
• CPC Class Codes: H04N 21/4334 Recording operations recording of a television signal H04N5/76; arrangements for recording or accumulating broadcast information or broadcast-related information H04H60/27
• CPC Class Codes: H04N 21/4532 involving end-user characteristics, e.g. viewer profile, preferences monitoring of user activities for profile generation for accessing a video database G06F16/739; user profiles in network data switching protocols H04L67/306; processing of user preferences or user profiles in wireless networks H04W8/18
• CPC Class Codes: H04N 21/454 Content or additional data filtering, e.g. blocking advertisements
• CPC Class Codes: H04N 21/4622 Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859
• CPC Class Codes: H04N 5/76 Television signal recording
• CPC Class Codes: H04N 5/775 between a recording apparatus and a television receiver
• CPC Class Codes: H04N 5/781 : on disks or drums
• CPC Class Codes: H04N 7/17318 : Direct or substantially direct transmission and handling of requests
• CPC Class Codes: H04N 9/7921 : for more than one processing mode
• CPC Class Codes: H04N 9/7925 : for more than one standard
• CPC Class Codes: H04N 9/87 : Regeneration of colour television signals H04N9/80 takes precedence

Abstract

A multimedia signal processing system utilizes an easily manipulated, low-cost storage and display system that allows the user to view a television program and instantly review previous scenes within the program. The invention also allows the user to store selected programs while simultaneously watching or reviewing another. A versatile system architecture enables providing the invention in multiple configurations, each adapted to receive input signals from a different source. At the highest level, the system includes an input section and an output section. Across all configurations, the output section remains substantially the same, while the input section varies according to the signal type and the source. Thus, several configurations are provided, each one requiring only minor system board modifications. The system architecture thus simplifies the design and manufacturing challenge presented by producing units to serve different markets, such as digital satellite, digital cable and analog cable.

Claims

1. A system for the simultaneous storage and retrieval of multimedia data, comprising:

an input section for acquiring an input signal;

wherein the input section creates a transport stream from the input signal;

a processor;

a decoder subsystem that decodes the transport stream, the decoder subsystem is communicatively connected to the processor;

a media switch communicatively connected to the decoder subsystem, the media switch operative to interface a plurality of system components and operates asynchronously from the processor, wherein the media switch includes;

a host controller;

a DMA controller;

a bus arbiter; and

a multimedia data stream processor; and

a storage subsystem communicatively connected to the media switch, wherein multimedia data are stored on the storage subsystem and retrieved from the storage subsystem essentially simultaneously.

2. The system of claim 1, wherein the input section is adapted to accept a digital satellite input signal.

3. The system of claim 1, wherein the input section comprises:

at least one satellite tuner; and

at least one demodulating element to demodulate the digital satellite signal to a transport stream.

4. The system of claim 1, wherein the input section is adapted to accept an input signal in both analog and digital formats from at least one RF coaxial connector.

5. The system of claim 4, wherein the input section comprises:

at least one tuner for selecting a desired channel;

at least one decoder for digitizing a video component of the input signal;

at least one sound processor for processing an audio component of the input signal into a digitized audio component;

an encoder having multi-stream encode capability, wherein the encoder receives the digitized video and audio components, whereupon the digitized video and audio components are encoded and multiplexed into a transport stream.

6. The system of claim 1, the decoder subsystem further comprising a transport stream decoder/graphics subsystem.

7. The system of claim 6, wherein the transport stream decoder/graphics subsystem includes any combination of:

a host bridge;

a memory controller;

an MPEG-3 transport demultiplexer;

an MPEG-3 decoder;

an audio/video decoder;

a graphics processor;

a bus bridge;

or

a bus controller.

8. The system of claim 7, the transport stream decoder/graphics subsystem further comprising at least one transport stream interface, wherein the transport stream interface receives the transport stream from the input section.

9. The system of claim 7, wherein the transport stream is demultiplexed into audio and video packet streams, wherein the audio and video packet streams are stored and played back through an output side of the transport stream decoder/graphics subsystem.

10. The system of claim 7, further comprising a SDRAM connected to the transport stream decoder/graphics subsystem.

11. The system of claim 1, wherein the processor is operative to run system software, middleware, and application software.

24. The system of claim 11, wherein the system software includes at least:

an operating system kernel and device drivers, the system software operative to initialize and control hardware components.

12. The system of claim 1, wherein the media switch is implemented in an ASIC (Application Specific Integrated Circuit) or a programmable logic device.

13. The system of claim 1, further comprising a front panel navigation cluster coupled to a GPIO (General Purpose Input/Output) included in the media switch.