US20130163954A1 - Transportable Digital Video Recorder System - Google Patents

Transportable Digital Video Recorder System Download PDF

Info

Publication number
US20130163954A1
US20130163954A1 US13/771,067 US201313771067A US2013163954A1 US 20130163954 A1 US20130163954 A1 US 20130163954A1 US 201313771067 A US201313771067 A US 201313771067A US 2013163954 A1 US2013163954 A1 US 2013163954A1
Authority
US
United States
Prior art keywords
form factor
small form
receiving device
digital
factor transportable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/771,067
Inventor
James M Barton
Mike Ramsay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TiVo Solutions Inc
Original Assignee
TiVo Solutions Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US09/126,071 priority Critical patent/US6233389B1/en
Priority to US09/827,029 priority patent/US20010019658A1/en
Priority to US30317901P priority
Priority to US10/190,256 priority patent/US8380041B2/en
Application filed by TiVo Solutions Inc filed Critical TiVo Solutions Inc
Priority to US13/771,067 priority patent/US20130163954A1/en
Publication of US20130163954A1 publication Critical patent/US20130163954A1/en
Application status is Abandoned legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/79Processing of colour television signals in connection with recording
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/414Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/4147PVR [Personal Video Recorder]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/418External card to be used in combination with the client device, e.g. for conditional access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/426Characteristics of or Internal components of the client
    • H04N21/42607Characteristics of or Internal components of the client for processing the incoming bitstream
    • H04N21/4263Characteristics of or Internal components of the client for processing the incoming bitstream involving specific tuning arrangements, e.g. two tuners
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
    • H04N21/433Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334Recording operations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
    • H04N21/436Interfacing a local distribution network, e.g. communicating with another STB or inside the home ; Interfacing an external card to be used in combination with the client device
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
    • H04N21/436Interfacing a local distribution network, e.g. communicating with another STB or inside the home ; Interfacing an external card to be used in combination with the client device
    • H04N21/4367Establishing a secure communication between the client and a peripheral device or smart card
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/4508Management of client or end-user data
    • H04N21/4532Management of client or end-user data involving end-user characteristics, e.g. viewer profile, preferences
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/21Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215Recordable discs
    • G11B2220/216Rewritable discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537Optical discs
    • G11B2220/2562DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537Optical discs
    • G11B2220/2562DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • G11B2220/2575DVD-RAMs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/90Tape-like record carriers
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/002Programmed access in sequence to a plurality of record carriers or indexed parts, e.g. tracks, thereof, e.g. for editing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/022Electronic editing of analogue information signals, e.g. audio or video signals
    • G11B27/024Electronic editing of analogue information signals, e.g. audio or video signals on tapes
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/032Electronic editing of digitised analogue information signals, e.g. audio or video signals on tapes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/79Processing of colour television signals in connection with recording
    • H04N9/80Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/79Processing of colour television signals in connection with recording
    • H04N9/80Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/806Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal
    • H04N9/8063Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal using time division multiplex of the PCM audio and PCM video signals

Abstract

A transportable digital video recorder system provides a transportable DVR containing a processor and persistent storage device storing a plurality of digital streams and is inserted into an authorized receiving device or a docking station. The system allows a receiving device to select a specific digital stream from the persistent storage device which is output to the receiving device and displayed to a user. User control commands are accepted via the receiving device and sent through the system and allow the user to view and listen to stored digital streams with at least the following functions: variable rate fast forward and rewind, frame step, index, pause, variable rate reverse play, variable rate play, and play.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • This application is a Continuation of U.S. patent application Ser. No. 10/190,256, filed Jul. 5, 2002, now U.S. Pat. No. 8,380,041, which is a Continuation-in-part of U.S. patent application Ser. No. 09/827,029, filed on 5 Apr. 2001, which is a continuation of U.S. patent application Ser. No. 09/126,071, filed on 30 Jul. 1998, now U.S. Pat. No. 6,233,389. U.S. patent application Ser. No. 10/190,256 further claims benefit of U.S. Provisional Patent Application Ser. No. 60/303,179, filed on 5 Jul. 2001, the entire contents of which all are incorporated herein by reference. The applicant(s) hereby rescind any disclaimer of claim scope in the parent application or the prosecution history thereof and advise the USPTO that the claims in this application may be broader than any claim in the parent application.
  • BACKGROUND OF THE INVENTION
  • 1. Technical Field
  • The invention relates to the time shifting of television broadcast signals. More particularly, the invention relates to the real time capture, storage, and display of television broadcast signals.
  • 2. Description of the Prior Art
  • The Video Cassette Recorder (VCR) has changed the lives of television (TV) viewers throughout the world. The VCR has offered viewers the flexibility to time shift TV programs to match their lifestyles.
  • The viewer stores TV programs onto magnetic tape using the VCR. The VCR gives the viewer the ability to play, rewind, fast forward and pause the stored program material. These functions enable the viewer to pause the program playback whenever he desires, fast forward through unwanted program material or commercials, and to replay favorite scenes. However, a VCR cannot both capture and play back information at the same time.
  • One approach to solving this problem is to use several VCRs. For example, if two video tape recorders are available, it might be possible to Ping-Pong between the two. In this case, the first recorder is started at the beginning of the program of interest. If the viewer wishes to rewind the broadcast, the second recorder begins recording, while the first recorder is halted, rewound to the appropriate place, and playback initiated. However, at least a third video tape recorder is required if the viewer wishes to fast forward to some point in time after the initial rewind was requested. In this case, the third recorder starts recording the broadcast stream while the second is halted and rewound to the appropriate position. Continuing this exercise, one can quickly see that the equipment becomes unwieldy, unreliable, expensive, and hard to operate, while never supporting all desired functions. In addition, tapes are of finite length, and may potentially end at inconvenient times, drastically lowering the value of the solution.
  • The use of digital computer systems to solve this problem has been suggested. U.S. Pat. No. 5,371,551 issued to Logan et al., on 6 Dec. 1994, teaches a method for concurrent video recording and playback. It presents a microprocessor controlled broadcast and playback device. Said device compresses and stores video data onto a hard disk. However, this approach is difficult to implement because the processor requirements for keeping up with the high video rates makes the device expensive and problematic. The microprocessor must be extremely fast to keep up with the incoming and outgoing video data.
  • More recently, digital videos recorders (DVR) have emerged in the marketplace that are based on structures beyond what was previously conceived. One example is U.S. Pat. No. 6,233,389 owned by the Applicant. There are a number of technology trends in force today that are continuing to expand the opportunities for DVR functionality. These trends, whose initial existence directly led to the invention of the DVR, are: the increasing density of gates on semiconductor media; and the increasing density of magnetic storage on hard drive platters.
  • Two recent announcements bring home these trends with full force.
  • Until recently, it was believed that the theoretical limit on hard drive platter storage density was 100 Gbits per square inch. This was due to the small number of atoms magnetized at that density versus the effects of parsistic magnetization, which would cause the magnetization to be randomized over short time periods. IBM Corporation recently announced that, by the addition of particlized ferromagnetic material to the platter surface (“pixie dust”), they could achieve 100 times the bit density, or 10Tbits per square inch. This implies that on a one-inch microdrive (a size that allows placing the drive into a PCMCIA form factor), a density of over 500 GBytes is theoretically possible. This capacity results in over 500 hours of video storage for a typical DVR.
  • In the semiconductor industry, theoretical limits on chip density have come and gone many times, most of the most recent beliefs was that optical lithography could not etch fine enough lines on silicon. Intel Corporation recently announced that it has developed a transistor ten times smaller than any previously fabricated, from which chips 100 times denser than today's could be developed.
  • SUMMARY OF THE INVENTION
  • The invention provides a transportable digital video recorder system. The invention gives a user the ability to record and play back TV broadcast programs and digital video using a compact portable small form factor transportable digital video recorder package. In addition, the invention allows the user to store selected television broadcast programs while the user is simultaneously watching or reviewing another program.
  • A preferred embodiment of the invention provides a small form factor transportable digital video recorder containing a processor and persistent storage device storing a plurality of digital streams. The small form factor transportable digital video recorder is inserted into a receiving device or a docking station and will only operate with an authorized receiving device or docking station.
  • The invention allows a receiving device to select a specific digital stream from the persistent storage device. The specific digital stream is then output from the small form factor transportable digital video recorder to the receiving device where the receiving device displays the digital stream to a user. User control commands are accepted via the receiving device and sent through the small form factor transportable digital video recorder system. These commands affect the flow of digital streams output to the receiving device and allow the user to view and listen to stored digital streams with at least the following functions: variable rate fast forward and rewind, frame step, index, pause, variable rate reverse play, variable rate play, and play.
  • The small form factor transportable digital video recorder receives analog signals and digital video signals from the receiving device and converts them into digital streams which are stored on the persistent storage device.
  • Another embodiment of the invention provides a plurality of input signal tuners on the small form factor transportable digital video recorder. The input tuners accept analog and digital television broadcast signals and can be individually tuned to a specific broadcast signal. The analog and digital television broadcast signals are converted into digital streams and stored on the persistent storage device.
  • An electronic program guide is also stored on the persistent storage device which the small form factor transportable digital video recorder delivers portions of to the receiving device upon request from the receiving device.
  • A docking station comprises at least one small form factor transportable digital video recorder slot allowing a user to backup and transfer specific data between small form factor transportable digital video recorders. The small form factor transportable digital video recorders authenticate each other before transferring data. The docking station also allows a user to transfer data stored on the docking station to a small form factor transportable digital video recorder.
  • Other aspects and advantages of the invention will become apparent from the following detailed description in combination with the accompanying drawings, illustrating, by way of example, the principles of the invention.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a block schematic diagram of a high level view of a preferred embodiment of the invention according to the invention;
  • FIG. 2 is a block schematic diagram of a preferred embodiment of the invention using multiple input and output modules according to the invention;
  • FIG. 3 is a schematic diagram of an Moving Pictures Experts Group (MPEG) data stream and its video and audio components according to the invention;
  • FIG. 4 is a block schematic diagram of a parser and four direct memory access (DMA) input engines contained in the Media Switch according to the invention;
  • FIG. 5 is a schematic diagram of the components of a packetized elementary stream (PES) buffer according to the invention;
  • FIG. 6 is a schematic diagram of the construction of a PES buffer from the parsed components in the Media Switch output circular buffers;
  • FIG. 7 is a block schematic diagram of the Media Switch and the various components that it communicates with according to the invention;
  • FIG. 8 is a block schematic diagram of a high level view of the program logic according to the invention;
  • FIG. 9 is a block schematic diagram of a class hierarchy of the program logic according to the invention;
  • FIG. 10 is a block schematic diagram of a preferred embodiment of the clip cache component of the invention according to the invention;
  • FIG. 11 is a block schematic diagram of a preferred embodiment of the invention that emulates a broadcast studio video mixer according to the invention;
  • FIG. 12 is a block schematic diagram of a closed caption parser according to the invention;
  • FIG. 13 is a block schematic diagram of a high level view of a preferred embodiment of the invention utilizing a VCR as an integral component of the invention according to the invention;
  • FIG. 14 is a block schematic diagram of a small form factor transportable digital video recorder embodiment of the invention according to the invention;
  • FIG. 15 is a block schematic diagram of a small form factor transportable digital video recorder embodiment of the invention interfacing with a car stereo or home entertainment system according to the invention;
  • FIG. 16 is a block schematic diagram of a small form factor transportable digital video recorder embodiment of the invention interfacing with a home entertainment system and a device registry according to the invention;
  • FIG. 17 is a block schematic diagram of a small form factor transportable digital video recorder embodiment of the invention using a docking station and interfacing with a handheld device according to the invention;
  • FIG. 18 is a block schematic diagram of a small form factor transportable digital video recorder embodiment of the invention interfacing with PCs according to the invention; and
  • FIG. 19 is a block schematic diagram of a preferred embodiment of the invention that uses a docking station to transfer and backup data between small form factor transportable digital video recorder embodiments of the invention according to the invention.
  • DETAILED DESCRIPTION OF THE INVENTION
  • The invention is embodied in a transportable digital video recorder system. A system according to the invention gives a user the ability to record and play back TV broadcast programs and digital video using a compact portable small form factor package. The invention additionally provides the user with the ability to store selected television broadcast programs while simultaneously watching or reviewing another program and to view stored programs with at least the following functions: variable rate fast forward and rewind, frame step, index, pause, variable rate reverse play, variable rate play, and play.
  • Referring to FIG. 1, a preferred embodiment of the invention has an Input Section 101, Media Switch 102, and an Output Section 103. The Input Section 101 takes television (TV) input streams in a multitude of forms, for example, National Television Standards Committee (NTSC) or PAL broadcast, and digital forms such as Digital Satellite System (DSS), Digital Broadcast Services (DBS), or Advanced Television Standards Committee (ATSC). DBS, DSS and ATSC are based on standards called Moving Pictures Experts Group 2 (MPEG2) and MPEG2 Transport. MPEG2 Transport is a standard for formatting the digital data stream from the TV source transmitter so that a TV receiver can disassemble the input stream to find programs in the multiplexed signal. The Input Section 101 produces MPEG streams. An MPEG2 transport multiplex supports multiple programs in the same broadcast channel, with multiple video and audio feeds and private data. The Input Section 101 tunes the channel to a particular program, extracts a specific MPEG program out of it, and feeds it to the rest of the system. Analog TV signals are encoded into a similar MPEG format using separate video and audio encoders, such that the remainder of the system is unaware of how the signal was obtained. Information may be modulated into the Vertical Blanking Interval (VBI) of the analog TV signal in a number of standard ways; for example, the North American Broadcast Teletext Standard (NABTS) may be used to modulate information onto lines 10 through 20 of an NTSC signal, while the FCC mandates the use of line 21 for Closed Caption (CC) and Extended Data Services (EDS). Such signals are decoded by the input section and passed to the other sections as if they were delivered via an MPEG2 private data channel.
  • The Media Switch 102 mediates between a microprocessor CPU 106, hard disk or storage device 105, and memory 104. Input streams are converted to an MPEG stream and sent to the Media Switch 102. The Media Switch 102 buffers the MPEG stream into memory. It then performs two operations if the user is watching real time TV: the stream is sent to the Output Section 103 and it is written simultaneously to the hard disk or storage device 105.
  • The Output Section 103 takes MPEG streams as input and produces an analog TV signal according to the NTSC, PAL, or other required TV standards. The Output Section 103 contains an MPEG decoder, On-Screen Display (OSD) generator, analog TV encoder and audio logic. The OSD generator allows the program logic to supply images which will be overlayed on top of the resulting analog TV signal. Additionally, the Output Section can modulate information supplied by the program logic onto the VBI of the output signal in a number of standard formats, including NABTS, CC and EDS.
  • With respect to FIG. 2, the invention easily expands to accommodate multiple Input Sections (tuners) 201, 202, 203, 204, each can be tuned to different types of input. Multiple Output Modules (decoders) 206, 207, 208, 209 are added as well. Special effects such as picture in a picture can be implemented with multiple decoders. The Media Switch 205 records one program while the user is watching another. This means that a stream can be extracted off the disk while another stream is being stored onto the disk.
  • Referring to FIG. 3, the incoming MPEG stream 301 has interleaved video 302, 305, 306 and audio 303, 304, 307 segments. These elements must be separated and recombined to create separate video 308 and audio 309 streams or buffers. This is necessary because separate decoders are used to convert MPEG elements back into audio or video analog components. Such separate delivery requires that time sequence information be generated so that the decoders may be properly synchronized for accurate playback of the signal.
  • The Media Switch enables the program logic to associate proper time sequence information with each segment, possibly embedding it directly into the stream. The time sequence information for each segment is called a time stamp. These time stamps are monotonically increasing and start at zero each time the system boots up. This allows the invention to find any particular spot in any particular video segment. For example, if the system needs to read five seconds into an incoming contiguous video stream that is being cached, the system simply has to start reading forward into the stream and look for the appropriate time stamp.
  • A binary search can be performed on a stored file to index into a stream. Each stream is stored as a sequence of fixed-size segments enabling fast binary searches because of the uniform timestamping. If the user wants to start in the middle of the program, the system performs a binary search of the stored segments until it finds the appropriate spot, obtaining the desired results with a minimal amount of information. If the signal were instead stored as an MPEG stream, it would be necessary to linearly parse the stream from the beginning to find the desired location.
  • With respect to FIG. 4, the Media Switch contains four input Direct Memory Access (DMA) engines 402, 403, 404, 405 each DMA engine has an associated buffer 410, 411, 412, 413. Conceptually, each DMA engine has a pointer 406, a limit for that pointer 407, a next pointer 408, and a limit for the next pointer 409. Each DMA engine is dedicated to a particular type of information, for example, video 402, audio 403, and parsed events 405. The buffers 410, 411, 412, 413 are circular and collect the specific information. The DMA engine increments the pointer 406 into the associated buffer until it reaches the limit 407 and then loads the next pointer 408 and limit 409. Setting the pointer 406 and next pointer 408 to the same value, along with the corresponding limit value creates a circular buffer. The next pointer 408 can be set to a different address to provide vector DMA.
  • The input stream flows through a parser 401. The parser 401 parses the stream looking for MPEG distinguished events indicating the start of video, audio or private data segments. For example, when the parser 401 finds a video event, it directs the stream to the video DMA engine 402. The parser 401 buffers up data and DMAs it into the video buffer 410 through the video DMA engine 402. At the same time, the parser 401 directs an event to the event DMA engine 405 which generates an event into the event buffer 413. When the parser 401 sees an audio event, it redirects the byte stream to the audio DMA engine 403 and generates an event into the event buffer 413. Similarly, when the parser 401 sees a private data event, it directs the byte stream to the private data DMA engine 404 and directs an event to the event buffer 413. The Media Switch notifies the program logic via an interrupt mechanism when events are placed in the event buffer.
  • Referring to FIGS. 4 and 5, the event buffer 413 is filled by the parser 401 with events. Each event 501 in the event buffer has an offset 502, event type 503, and time stamp field 504. The parser 401 provides the type and offset of each event as it is placed into the buffer. For example, when an audio event occurs, the event type field is set to an audio event and the offset indicates the location in the audio buffer 411. The program logic knows where the audio buffer 411 starts and adds the offset to find the event in the stream. The address offset 502 tells the program logic where the next event occurred, but not where it ended. The previous event is cached so the end of the current event can be found as well as the length of the segment.
  • With respect to FIGS. 5 and 6, the program logic reads accumulated events in the event buffer 602 when it is interrupted by the Media Switch 601. From these events the program logic generates a sequence of logical segments 603 which correspond to the parsed MPEG segments 615. The program logic converts the offset 502 into the actual address 610 of each segment, and records the event length 609 using the last cached event. If the stream was produced by encoding an analog signal, it will not contain Program Time Stamp (PTS) values, which are used by the decoders to properly present the resulting output. Thus, the program logic uses the generated time stamp 504 to calculate a simulated PTS for each segment and places that into the logical segment timestamp 607. In the case of a digital TV stream, PTS values are already encoded in the stream. The program logic extracts this information and places it in the logical segment timestamp 607.
  • The program logic continues collecting logical segments 603 until it reaches the fixed buffer size. When this occurs, the program logic generates a new buffer, called a Packetized Elementary Stream (PES) 605 buffer containing these logical segments 603 in order, plus ancillary control information. Each logical segment points 604 directly to the circular buffer, e.g., the video buffer 613, filled by the Media Switch 601. This new buffer is then passed to other logic components, which may further process the stream in the buffer in some way, such as presenting it for decoding or writing it to the storage media. Thus, the MPEG data is not copied from one location in memory to another by the processor. This results in a more cost effective design since lower memory bandwidth and processor bandwidth is required.
  • A unique feature of the MPEG stream transformation into PES buffers is that the data associated with logical segments need not be present in the buffer itself, as presented above. When a PES buffer is written to storage, these logical segments are written to the storage medium in the logical order in which they appear. This has the effect of gathering components of the stream, whether they be in the video, audio or private data circular buffers, into a single linear buffer of stream data on the storage medium. The buffer is read back from the storage medium with a single transfer from the storage media, and the logical segment information is updated to correspond with the actual locations in the buffer 606. Higher level program logic is unaware of this transformation, since it handles only the logical segments, thus stream data is easily managed without requiring that the data ever be copied between locations in DRAM by the CPU.
  • A unique aspect of the Media Switch is the ability to handle high data rates effectively and inexpensively. It performs the functions of taking video and audio data in, sending video and audio data out, sending video and audio data to disk, and extracting video and audio data from the disk on a low cost platform. Generally, the Media Switch runs asynchronously and autonomously with the microprocessor CPU, using its DMA capabilities to move large quantities of information with minimal intervention by the CPU.
  • Referring to FIG. 7, the input side of the Media Switch 701 is connected to an MPEG encoder 703. There are also circuits specific to MPEG audio 704 and vertical blanking interval (VBI) data 702 feeding into the Media Switch 701. If a digital TV signal is being processed instead, the MPEG encoder 703 is replaced with an MPEG2 Transport Demultiplexor, and the MPEG audio encoder 704 and VBI decoder 702 are deleted. The demultiplexor multiplexes the extracted audio, video and private data channel streams through the video input Media Switch port.
  • The parser 705 parses the input data stream from the MPEG encoder 703, audio encoder 704 and VBI decoder 702, or from the transport demultiplexor in the case of a digital TV stream. The parser 705 detects the beginning of all of the important events in a video or audio stream, the start of all of the frames, the start of sequence headers—all of the pieces of information that the program logic needs to know about in order to both properly play back and perform special effects on the stream, e.g. fast forward, reverse, play, pause, fast/slow play, indexing, and fast/slow reverse play.
  • The parser 705 places tags 707 into the FIFO 706 when it identifies video or audio segments, or is given private data. The DMA 709 controls when these tags are taken out. The tags 707 and the DMA addresses of the segments are placed into the event queue 708. The frame type information, whether it is a start of a video I-frame, video B-frame, video P-frame, video PES, audio PES, a sequence header, an audio frame, or private data packet, is placed into the event queue 708 along with the offset in the related circular buffer where the piece of information was placed. The program logic operating in the CPU 713 examines events in the circular buffer after it is transferred to the DRAM 714.
  • The Media Switch 701 has a data bus 711 that connects to the CPU 713 and DRAM 714. An address bus 712 is also shared between the Media Switch 701, CPU 713, and DRAM 714. A hard disk or storage device 710 is connected to one of the ports of the Media Switch 701. The Media Switch 701 outputs streams to an MPEG video decoder 715 and a separate audio decoder 717. The audio decoder 717 signals contain audio cues generated by the system in response to the user's commands on a remote control or other internal events. The decoded audio output from the MPEG decoder is digitally mixed 718 with the separate audio signal. The resulting signals contain video, audio, and on-screen displays and are sent to the TV 716.
  • The Media Switch 701 takes in 8-bit data and sends it to the disk, while at the same time extracts another stream of data off of the disk and sends it to the MPEG decoder 715. All of the DMA engines described above can be working at the same time. The Media Switch 701 can be implemented in hardware using a Field Programmable Gate Array (FPGA), ASIC, or discrete logic.
  • Rather than having to parse through an immense data stream looking for the start of where each frame would be, the program logic only has to look at the circular event buffer in DRAM 714 and it can tell where the start of each frame is and the frame type. This approach saves a large amount of CPU power, keeping the real time requirements of the CPU 713 small. The CPU 713 does not have to be very fast at any point in time. The Media Switch 701 gives the CPU 713 as much time as possible to complete tasks. The parsing mechanism 705 and event queue 708 decouple the CPU 713 from parsing the audio, video, and buffers and the real time nature of the streams, which allows for lower costs. It also allows the use of a bus structure in a CPU environment that operates at a much lower clock rate with much cheaper memory than would be required otherwise.
  • The CPU 713 has the ability to queue up one DMA transfer and can set up the next DMA transfer at its leisure. This gives the CPU 713 large time intervals within which it can service the DMA controller 709. The CPU 713 may respond to a DMA interrupt within a larger time window because of the large latency allowed. MPEG streams, whether extracted from an MPEG2 Transport or encoded from an analog TV signal, are typically encoded using a technique called Variable Bit Rate encoding (VBR). This technique varies the amount of data required to represent a sequence of images by the amount of movement between those images. This technique can greatly reduce the required bandwidth for a signal, however sequences with rapid movement (such as a basketball game) may be encoded with much greater bandwidth requirements. For example, the Hughes DirecTV satellite system encodes signals with anywhere from 1 to 10 Mb/s of required bandwidth, varying from frame to frame. It would be difficult for any computer system to keep up with such rapidly varying data rates without this structure.
  • With respect to FIG. 8, the program logic within the CPU has three conceptual components: sources 801, transforms 802, and sinks 803. The sources 801 produce buffers of data. Transforms 802 process buffers of data and sinks 803 consume buffers of data. A transform is responsible for allocating and queuing the buffers of data on which it will operate. Buffers are allocated as if “empty” to sources of data, which give them back “full”. The buffers are then queued and given to sinks as “full”, and the sink will return the buffer “empty”.
  • A source 801 accepts data from encoders, e.g., a digital satellite receiver. It acquires buffers for this data from the downstream transform, packages the data into a buffer, then pushes the buffer down the pipeline as described above. The source object 801 does not know anything about the rest of the system. The sink 803 consumes buffers, taking a buffer from the upstream transform, sending the data to the decoder, and then releasing the buffer for reuse.
  • There are two types of transforms 802 used: spatial and temporal. Spatial transforms are transforms that perform, for example, an image convolution or compression/decompression on the buffered data that is passing through. Temporal transforms are used when there is no time relation that is expressible between buffers going in and buffers coming out of a system. Such a transform writes the buffer to a file 804 on the storage medium. The buffer is pulled out at a later time, sent down the pipeline, and properly sequenced within the stream.
  • Referring to FIG. 9, a C++ class hierarchy derivation of the program logic is shown. The TiVo Media Kernel (Tmk) 904, 908, 913 mediates with the operating system kernel. The kernel provides operations such as: memory allocation, synchronization, and threading. The TmkCore 904, 908, 913 structures memory taken from the media kernel as an object. It provides operators, new and delete, for constructing and deconstructing the object. Each object (source 901, transform 902, and sink 903) is multi-threaded by definition and can run in parallel.
  • The TmkPipeline class 905, 909, 914 is responsible for flow control through the system. The pipelines point to the next pipeline in the flow from source 901 to sink 903. To pause the pipeline, for example, an event called “pause” is sent to the first object in the pipeline. The event is relayed on to the next object and so on down the pipeline. This all happens asynchronously to the data going through the pipeline. Thus, similar to applications such as telephony, control of the flow of MPEG streams is asynchronous and separate from the streams themselves. This allows for a simple logic design that is at the same time powerful enough to support the features described previously, including pause, rewind, fast forward and others. In addition, this structure allows fast and efficient switching between stream sources, since buffered data can be simply discarded and decoders reset using a single event, after which data from the new stream will pass down the pipeline. Such a capability is needed, for example, when switching the channel being captured by the input section, or when switching between a live signal from the input section and a stored stream.
  • The source object 901 is a TmkSource 906 and the transform object 902 is a TmkXfrm 910. These are intermediate classes that define standard behaviors for the classes in the pipeline. Conceptually, they handshake buffers down the pipeline. The source object 901 takes data out of a physical data source, such as the Media Switch, and places it into a PES buffer. To obtain the buffer, the source object 901 asks the down stream object in his pipeline for a buffer (allocEmptyBuf). The source object 901 is blocked until there is sufficient memory. This means that the pipeline is self-regulating; it has automatic flow control. When the source object 901 has filled up the buffer, it hands it back to the transform 902 through the pushFullBuf function.
  • The sink 903 is flow controlled as well. It calls nextFullBuf which tells the transform 902 that it is ready for the next filled buffer. This operation can block the sink 903 until a buffer is ready. When the sink 903 is finished with a buffer (i.e., it has consumed the data in the buffer) it calls releaseEmptyBuf. ReleaseEmptyBuf gives the buffer back to the transform 902. The transform 902 can then hand that buffer, for example, back to the source object 901 to fill up again. In addition to the automatic flow-control benefit of this method, it also provides for limiting the amount of memory dedicated to buffers by allowing enforcement of a fixed allocation of buffers by a transform. This is an important feature in achieving a cost-effective limited DRAM environment.
  • The MediaSwitch class 909 calls the allocEmptyBuf method of the TmkClipCache 912 object and receives a PES buffer from it. It then goes out to the circular buffers in the Media Switch hardware and generates PES buffers. The MediaSwitch class 909 fills the buffer up and pushes it back to the TmkClipCache 912 object.
  • The TmkClipCache 912 maintains a cache file 918 on a storage medium. It also maintains two pointers into this cache: a push pointer 919 that shows where the next buffer coming from the source 901 is inserted; and a current pointer 920 which points to the current buffer used.
  • The buffer that is pointed to by the current pointer is handed to the Vela decoder class 916. The Vela decoder class 916 talks to the decoder 921 in the hardware. The decoder 921 produces a decoded TV signal that is subsequently encoded into an analog TV signal in NTSC, PAL or other analog format. When the Vela decoder class 916 is finished with the buffer it calls releaseEmptyBuf.
  • The structure of the classes makes the system easy to test and debug. Each level can be tested separately to make sure it performs in the appropriate manner, and the classes may be gradually aggregated to achieve the desired functionality while retaining the ability to effectively test each object.
  • The control object 917 accepts commands from the user and sends events into the pipeline to control what the pipeline is doing. For example, if the user has a remote control and is watching TV, the user presses pause and the control object 917 sends an event to the sink 903, that tells it pause. The sink 903 stops asking for new buffers. The current pointer 920 stays where it is at. The sink 903 starts taking buffers out again when it receives another event that tells it to play. The system is in perfect synchronization; it starts from the frame that it stopped at.
  • The remote control may also have a fast forward key. When the fast forward key is pressed, the control object 917 sends an event to the transform 902, that tells it to move forward two seconds. The transform 902 finds that the two second time span requires it to move forward three buffers. It then issues a reset event to the downstream pipeline, so that any queued data or state that may be present in the hardware decoders is flushed. This is a critical step, since the structure of MPEG streams requires maintenance of state across multiple frames of data, and that state will be rendered invalid by repositioning the pointer. It then moves the current pointer 920 forward three buffers. The next time the sink 903 calls nextFullBuf it gets the new current buffer. The same method works for fast reverse in that the transform 902 moves the current pointer 920 backwards.
  • A system clock reference resides in the decoder. The system clock reference is sped up for fast play or slowed down for slow play. The sink simply asks for full buffers faster or slower, depending on the clock speed.
  • With respect to FIG. 10, two other objects derived from the TmkXfrm class are placed in the pipeline for disk access. One is called TmkClipReader 1003 and the other is called TmkClipWriter 1001. Buffers come into the TmkClipWriter 1001 and are pushed to a file on a storage medium 1004. TmkClipReader 1003 asks for buffers which are taken off of a file on a storage medium 1005. A TmkClipReader 1003 provides only the allocEmptyBuf and pushFullBuf methods, while a TmkClipWriter 1001 provides only the nextFullBuf and releaseEmptyBuf methods. A TmkClipReader 1003 therefore performs the same function as the input, or “push” side of a TmkClipCache 1002, while a TmkClipWriter 1001 therefore performs the same function as the output, or “pull” side of a TmkClipCache 1002.
  • Referring to FIG. 11, a preferred embodiment that accomplishes multiple functions is shown. A source 1101 has a TV signal input. The source sends data to a PushSwitch 1102 which is a transform derived from TmkXfrm. The PushSwitch 1102 has multiple outputs that can be switched by the control object 1114. This means that one part of the pipeline can be stopped and another can be started at the user's whim. The user can switch to different storage devices. The PushSwitch 1102 could output to a TmkClipWriter 1106, which goes onto a storage device 1107 or write to the cache transform 1103.
  • An important feature of this apparatus is the ease with which it can selectively capture portions of an incoming signal under the control of program logic. Based on information such as the current time, or perhaps a specific time span, or perhaps via a remote control button press by the viewer, a TmkClipWriter 1106 may be switched on to record a portion of the signal, and switched off at some later time. This switching is typically caused by sending a “switch” event to the PushSwitch 1102 object.
  • An additional method for triggering selective capture is through information modulated into the VBI or placed into an MPEG private data channel Data decoded from the VBI or private data channel is passed to the program logic. The program logic examines this data to determine if the data indicates that capture of the TV signal into which it was modulated should begin. Similarly, this information may also indicate when recording should end, or another data item may be modulated into the signal indicating when the capture should end. The starting and ending indicators may be explicitly modulated into the signal or other information that is placed into the signal in a standard fashion may be used to encode this information.
  • With respect to FIG. 12, an example is shown which demonstrates how the program logic scans the words contained within the closed caption (CC) fields to determine starting and ending times, using particular words or phrases to trigger the capture. A stream of NTSC or PAL fields 1201 is presented. CC bytes are extracted from each odd field 1202, and entered in a circular buffer 1203 for processing by the Word Parser 1204. The Word Parser 1204 collects characters until it encounters a word boundary, usually a space, period or other delineating character. Recall from above, that the MPEG audio and video segments are collected into a series of fixed-size PES buffers. A special segment is added to each PES buffer to hold the words extracted from the CC field 1205. Thus, the CC information is preserved in time synchronization with the audio and video, and can be correctly presented to the viewer when the stream is displayed. This also allows the stored stream to be processed for CC information at the leisure of the program logic, which spreads out load, reducing cost and improving efficiency. In such a case, the words stored in the special segment are simply passed to the state table logic 1206.
  • During stream capture, each word is looked up in a table 1206 which indicates the action to take on recognizing that word. This action may simply change the state of the recognizer state machine 1207, or may cause the state machine 1207 to issue an action request, such as “start capture”, “stop capture”, “phrase seen”, or other similar requests. Indeed, a recognized word or phrase may cause the pipeline to be switched; for example, to overlay a different audio track if undesirable language is used in the program.
  • Note that the parsing state table 1206 and recognizer state machine 1207 may be modified or changed at any time. For example, a different table and state machine may be provided for each input channel. Alternatively, these elements may be switched depending on the time of day, or because of other events.
  • Referring to FIG. 11, a PullSwitch is added 1104 which outputs to the sink 1105. The sink 1105 calls nextFullBuf and releaseEmptyBuf to get or return buffers from the PullSwitch 1104. The PullSwitch 1104 can have any number of inputs. One input could be an ActionClip 1113. The remote control can switch between input sources. The control object 1114 sends an event to the PullSwitch 1104, telling it to switch. It will switch from the current input source to whatever input source the control object selects.
  • An ActionClip class provides for sequencing a number of different stored signals in a predictable and controllable manner, possibly with the added control of viewer selection via a remote control. Thus, it appears as a derivative of a TmkXfrm object that accepts a “switch” event for switching to the next stored signal.
  • This allows the program logic or user to create custom sequences of video output. Any number of video segments can be lined up and combined as if the program logic or user were using a broadcast studio video mixer. TmkClipReaders 1108, 1109, 1110 are allocated and each is hooked into the PullSwitch 1104. The PullSwitch 1104 switches between the TmkClipReaders 1108, 1109, 1110 to combine video and audio clips. Flow control is automatic because of the way the pipeline is constructed. The Push and Pull Switches are the same as video switches in a broadcast studio.
  • The derived class and resulting objects described here may be combined in an arbitrary way to create a number of different useful configurations for storing, retrieving, switching and viewing of TV streams. For example, if multiple input and output sections are available, one input is viewed while another is stored, and a picture-in-picture window generated by the second output is used to preview previously stored streams. Such configurations represent a unique and novel application of software transformations to achieve the functionality expected of expensive, sophisticated hardware solutions within a single cost-effective device.
  • With respect to FIG. 13, a high-level system view is shown which implements a VCR backup. The Output Module 1303 sends TV signals to the VCR 1307. This allows the user to record TV programs directly on to video tape. The invention allows the user to queue up programs from disk to be recorded on to video tape and to schedule the time that the programs are sent to the VCR 1307. Title pages (EPG data) can be sent to the VCR 1307 before a program is sent. Longer programs can be scaled to fit onto smaller video tapes by speeding up the play speed or dropping frames.
  • The VCR 1307 output can also be routed back into the Input Module 1301. In this configuration the VCR acts as a backup system for the Media Switch 1302. Any overflow storage or lower priority programming is sent to the VCR 1307 for later retrieval.
  • The Input Module 1301 can decode and pass to the remainder of the system information encoded on the Vertical Blanking Interval (VBI). The Output Module 1303 can encode into the output VBI data provided by the remainder of the system. The program logic may arrange to encode identifying information of various kinds into the output signal, which will be recorded onto tape using the VCR 1307. Playing this tape back into the input allows the program logic to read back this identifying information, such that the TV signal recorded on the tape is properly handled. For example, a particular program may be recorded to tape along with information about when it was recorded, the source network, etc. When this program is played back into the Input Module, this information can be used to control storage of the signal, presentation to the viewer, etc.
  • One skilled in the art will readily appreciate that such a mechanism may be used to introduce various data items to the program logic which are not properly conceived of as television signals. For instance, software updates or other data may be passed to the system. The program logic receiving this data from the television stream may impose controls on how the data is handled, such as requiring certain authentication sequences and/or decrypting the embedded information according to some previously acquired key. Such a method works for normal broadcast signals as well, leading to an efficient means of providing non-TV control information and data to the program logic.
  • Additionally, one skilled in the art will readily appreciate that although a VCR is specifically mentioned above, any multimedia recording device (e.g., a Digital Video Disk-Random Access Memory (DVD-RAM) recorder) is easily substituted in its place.
  • Although the invention is described herein with reference to the preferred embodiment, one skilled in the art will readily appreciate that other applications may be substituted for those set forth herein without departing from the spirit and scope of the present invention. For example, the invention can be used in the detection of gambling casino crime. The input section of the invention is connected to the casino's video surveillance system. Recorded video is cached and simultaneously output to external VCRs. The user can switch to any video feed and examine (i.e., rewind, play, slow play, fast forward, etc.) a specific segment of the recorded video while the external VCRs are being loaded with the real-time input video.
  • Multimedia Time Warping on a Small Form Factor Transportable Digital Video Recorder
  • The PCMCIA form factor provides a very effective vehicle for provisioning electronic capabilities. It is small, easily handled, and has a very effective docking mechanism. Similar small form-factor standardized plug-in architectures are constantly being developed, such as the Sony Memory Stick and the SD memory card. Both of these examples are now being extended to non-memory applications.
  • Until recently, it was believed that the theoretical limit on hard drive platter storage density was 100 Gbits per square inch. This was due to the small number of atoms magnetized at that density versus the effects of parsistic magnetization, which would cause the magnetization to be randomized over short time periods. IBM Corporation recently announced that, by the addition of particlized ferromagnetic material to the platter surface (“pixie dust”), they could achieve 100 times the bit density, or 10Tbits per square inch. This implies that on a one-inch microdrive (a size that allows placing the drive into a PCMCIA form factor), a density of over 500 GBytes is theoretically possible. This capacity results in over 500 hours of video storage for a typical DVR.
  • In the semiconductor industry, theoretical limits on chip density have come and gone many times, most of the most recent beliefs was that optical lithography could not etch fine enough lines on silicon. Intel Corporation recently announced that it has developed a transistor ten times smaller than any previously fabricated, from which chips 100 times denser than today's could be developed.
  • Referring to FIG. 14, given all of the foregoing, the invention can be incorporated into many popular plug-in formats having these basic features:
  • A high-density microdrive (persistent storage device) 1402 contained within the plug-in module 1401, supplemented by a large amount of DRAM for software and buffering 1402,
  • A single chip, or small number of chips 1403, implementing the machinery needed for basic capabilities of the invention described above:
  • a processor of adequate capability,
  • data handling i.e., the MediaSwitch,
  • disk management hardware
  • Depending on the application, an integrated security subsystem 1403 providing secure data access and transfer.
  • There are several forms the small form factor transportable digital video recorder 1401 would take. In one form, the card is designed to accept digital signals 1405 for storage and retrieval. Thus, it would accept compressed digital streams and reproduce compressed digital streams. A separate control channel would be used to read information from the small form factor transportable digital video recorder 1401, such as program guide or state data, and write information to the small form factor transportable digital video recorder 1401, such as implementing trick-play modes (e.g., variable rate fast forward and rewind, frame step, index, pause, variable rate reverse play, variable rate play, and play) or updating EPG data.
  • With respect to FIG. 15, this form 1501 can work as an adjunct to a “docking station”, for example, a home theatre receiver 1503, in-dash car stereo 1502, or back-seat video player 1502. It allows the storage of all interesting media on the small form factor transportable digital video recorder and the easy transport of it between various devices. The security subsystem is used to authenticate the docking station to the small form factor transportable digital video recorder and vice-versa, so that content protection could be assured, as well as the rights of personal use.
  • The docking of the small form factor transportable digital video recorder 1501 and a dock can be accomplished via directly inserting the small form factor transportable digital video recorder into a small form factor transportable digital video recorder slot built into the dock (or connected to the dock) or connected to the dock via a wired interface using USB (original and 2.0) or Firewire (IEEE 1394).
  • Referring to FIG. 16, for example, the way in which an authentication might happen is as follows: a central registration 1603 is maintained in which the embedded, unique serial number of every registered device is maintained. A user registers a device 1601 under his ownership by having it contact the registry 1603 (assuming it has a security subsystem similar to the invention's), authenticate itself, and register the user's ownership. The device 1601 also gets a copy of the small form factor transportable digital video recorder 1602 public key and its serial number. The user then has the small form factor transportable digital video recorder 1602 contact the registry 1603 (docked, of course), and the registry 1603 downloads the public keys and serial numbers of devices registered to that user. Then the dock 1601 and the small form factor transportable digital video recorder 1602 can authenticate each other whenever the small form factor transportable digital video recorder 1602 is plugged in.
  • Another form incorporates more of the invention's functionality described above into the card chipset 1403, for instance the encoders and decoders (and optionally tuners), and relies only on the dock to provide digitized video and audio signals, and network connections.
  • Still another completes the spectrum, where the dock provides analog media signals, accepts analog signals, and provides a phone connection. The small form factor transportable digital video recorder 1401 then includes the analog-to-digital conversion and the modem, as described above, in the chipset 1403.
  • Thus, a range of useful versions of the small form factor transportable digital video recorder and dock can be built that address different price/performance tradeoffs and evolving technology.
  • The Small Form Factor Transportable Digital Video Recorder and the Handheld
  • With respect to FIG. 17, a small form factor transportable digital video recorder 1702 containing either form described above can be inserted into a dock 1701. The dock 1701 and small form factor transportable digital video recorder 1702 authenticate each other using each other's public key and serial number. The dock downloads audio/video onto the small form factor transportable digital video recorder's microdrive. The user can then insert the small form factor transportable digital video recorder into a handheld device 1703. Since the small form factor transportable digital video recorder 1702 has the invention's MediaSwitch onboard, the handheld device 1703 accepts the digital streams for display from the small form factor transportable digital video recorder 1702. The user sends selection and control commands through the handheld 1703 to the small form factor transportable digital video recorder 1702. The user can use the trick-play features of the MediaSwitch on the audio/video material from the small form factor transportable digital video recorder's microdrive to listen to and view the material.
  • The Small Form Factor Transportable Digital Video Recorder and the PC
  • Referring to FIG. 18, the invention's small form factor transportable digital video recorder 1801 is easily interfaced to a typical PC, such as a laptop computer 1802 or desktop computer 1803 with PCMCIA ports. Typical PCs of this era have the capability in software to perform encoding and decoding functions. An outboard analog video input 1804 can be added to the small form factor transportable digital video recorder 1801 (for example, with a dongle of some kind, similar to those found on PCMCIA ethernet cards or with a doublewide card; or a TV antenna similar to the RF antennas on Richochet or other wide-area-wireless cards).
  • The small form factor transportable digital video recorder 1801 can digitize the analog signal and encode it, or pass it to the PC software for encoding, whence it is passed back to the small form factor transportable digital video recorder 1801 for storage. On output, the digital signal is passed from the small form factor transportable digital video recorder 1801 to the PC 1802, 1803 for decoding and display.
  • Another preferred embodiment of the invention modifies the analog video input to accept digital video and broadcast signals. At least one tuner, as described above, can also be onboard the small form factor transportable digital video recorder 1801. The tuner can tune to specific channels within the analog signal if the analog signal is a broadcast signal or the digital broadcast signal. Digital video signals are translated as described above and stored through the MediaSwitch.
  • Another preferred embodiment of the invention is an all-analog small form factor transportable digital video recorder 1801, in which the dongle 1804 provides analog out as well. The analog output from the dongle 1804 is connected to the PC's video input for display on its monitor. This provides complete content security, at least for the purely digital parts.
  • Otherwise, if the PC contains an embedded security system of some kind, an authentication phase can be entered that ensures that the software handling the video and audio media is untampered with (ala the Windows XP mechanisms) before permitting operation.
  • Backing up the Small Form Factor Transportable Digital Video Recorder
  • With respect to FIG. 19, a dock 1901 with two (or more) slots 1904 can be used to transfer information between or backup the invention's small form factor transportable digital video recorders. The dock 1901 basically provides a backplane between the slots 1904. Stick two small form factor transportable digital video recorders 1902, 1903 in and they authenticate to each other. The user presses a button (real or virtual) and the content is copied from one small form factor transportable digital video recorder to the other. Even further, the user can selectively choose content to be copied from one card to the other.
  • Although the invention is described herein with reference to the preferred embodiment, one skilled in the art will readily appreciate that other applications may be substituted for those set forth herein without departing from the spirit and scope of the present invention. Accordingly, the invention should only be limited by the Claims included below.

Claims (22)

1. A method for a small form factor transportable digital video recorder (DVR), comprising:
storing at least two digital streams on a storage device in a small form factor transportable DVR the small form factor transportable DVR is communicatively connected to a receiving device, a processor in the small form factor transportable DVR communicates with the receiving device;
upon the small form factor transportable DVR being communicatively connected to the receiving device, the small form factor transportable DVR authenticating the receiving device;
receiving, by the small form factor transportable DVR, a selection, from the receiving device, of a specific digital stream among the plurality of digital streams stored on the storage device in the small form factor transportable DVR;
selecting, by the small form factor transportable DVR, the specific digital stream from the storage device among the at least two digital streams stored on the storage device;
sending, by the small form factor transportable DVR, the specific digital stream to the receiving device;
in response to receiving a user command via the receiving device, the small form factor transportable DVR controlling a delivery rate and direction of the specific digital stream to the receiving device to perform at least one of: variable rate fast forward, variable rate rewind, pause, or play functions.
2. The method of claim 1, further comprising:
receiving analog signals from the receiving device;
converting, by the small form factor transportable DVR, the analog signals into a digital stream; and
storing the digital stream on the storage device.
3. The method of claim 1, further comprising:
receiving digital video signals from the receiving device;
converting, by the small form factor transportable DVR, the digital video signals into a digital stream; and
storing the digital stream on the storage device.
4. The method of claim 1, further comprising:
accepting digital television broadcast signals using a plurality of input signal tuners in the small form factor transportable DVR;
wherein each of the tuners is individually tuned to a specific broadcast signal;
converting digital television broadcast signals into a digital stream; and
storing the digital stream on the storage device.
5. The method of claim 1, wherein the small form factor transportable DVR will only allow access to digital streams on the storage device by an authorized receiving device.
6. The method of claim 1, further comprising:
storing an electronic program guide on the storage device in the small form factor transportable DVR; and
wherein the small form factor transportable DVR delivers portions of the electronic program guide to the receiving device upon request from the receiving device.
7. The method of claim 1, further comprising:
upon the small form factor transportable DVR being communicatively connected to the receiving device, the small form factor transportable DVR authenticating the receiving device.
8. The method of claim 1, wherein the storage device is at least one microdrive.
9. The method of claim 1, wherein the small form factor transportable DVR is communicatively connected to the receiving device via at least one of: USB, Firewire, or docking station.
10. The method of claim 1, wherein the storage device is at least one solid state memory device.
11. The method of claim 1, wherein the small form factor transportable DVR is a plug-in module.
12. An apparatus for a small form factor transportable digital video recorder (DVR), comprising:
a storage device in a small form factor transportable DVR;
a processor on the small form factor transportable DVR, the small form factor transportable DVR is communicatively connected to a receiving device, the processor in the small form factor transportable DVR communicates with the receiving device;
at least two digital streams stored on the storage device;
a command receiving subsystem in the small form factor transportable DVR that receives a selection from the receiving device of a specific digital stream among the plurality of digital streams stored on the storage device in the small form factor transportable DVR;
a digital stream selection subsystem in the small form factor transportable DVR that selects the specific digital stream from the storage device among the at least two digital streams stored on the storage device and sends the specific digital stream to the receiving device;
in response to receiving a user command via the receiving device, the command receiving subsystem controls a delivery rate and direction of the specific digital stream to the receiving device to perform at least one of: variable rate fast forward, variable rate rewind, pause, or play functions.
13. The apparatus of claim 12, further comprising:
an analog signal receiver that receives analog signals from the receiving device;
an analog signal to digital signal converter that converts the analog signals into a digital stream; and
a storing subsystem that stores the digital stream on the storage device.
14. The apparatus of claim 12, further comprising:
a digital signal receiver that receives digital video signals from the receiving device;
a digital signal converter that converts the digital video signals into a digital stream; and
a storing subsystem that stores the digital stream on the storage device.
15. The apparatus of claim 12, further comprising:
a plurality of input signal tuners on the small form factor transportable DVR;
wherein the plurality of tuners accept digital television broadcast signals;
wherein each of the tuners is individually tuned to a specific broadcast signal;
a digital signal converter that converts digital television broadcast signals into a digital stream; and
a storing subsystem that stores the digital stream on the persistent storage device.
16. The apparatus of claim 12, wherein the small form factor transportable DVR will only allow access to digital streams on the persistent storage device by an authorized receiving device.
17. The apparatus of claim 12, further comprising:
an electronic program guide stored on the persistent storage device; and
wherein the small form factor transportable DVR delivers portions of the electronic program guide to the receiving device upon request from the receiving device.
18. The apparatus of claim 12, further comprising:
an authentication device in the small form factor transportable DVR that, upon the small form factor transportable DVR being communicatively connected to the receiving device, authenticates the receiving device.
19. The apparatus of claim 12, wherein the small form factor transportable DVR is communicatively connected to the receiving device via at least one of: USB, Firewire, or docking station.
20. The apparatus of claim 12, wherein the storage device is at least one microdrive.
21. The apparatus of claim 12, wherein the storage device is at least one solid state memory device.
22. The apparatus of claim 12, wherein the small form factor transportable DVR is a plug-in module.
US13/771,067 1998-07-30 2013-02-19 Transportable Digital Video Recorder System Abandoned US20130163954A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US09/126,071 US6233389B1 (en) 1998-07-30 1998-07-30 Multimedia time warping system
US09/827,029 US20010019658A1 (en) 1998-07-30 2001-04-05 Multimedia time warping system
US30317901P true 2001-07-05 2001-07-05
US10/190,256 US8380041B2 (en) 1998-07-30 2002-07-05 Transportable digital video recorder system
US13/771,067 US20130163954A1 (en) 1998-07-30 2013-02-19 Transportable Digital Video Recorder System

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/771,067 US20130163954A1 (en) 1998-07-30 2013-02-19 Transportable Digital Video Recorder System

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US10/190,256 Continuation US8380041B2 (en) 1998-07-30 2002-07-05 Transportable digital video recorder system

Publications (1)

Publication Number Publication Date
US20130163954A1 true US20130163954A1 (en) 2013-06-27

Family

ID=26973312

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/190,256 Active 2023-02-22 US8380041B2 (en) 1998-07-30 2002-07-05 Transportable digital video recorder system
US13/771,067 Abandoned US20130163954A1 (en) 1998-07-30 2013-02-19 Transportable Digital Video Recorder System

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US10/190,256 Active 2023-02-22 US8380041B2 (en) 1998-07-30 2002-07-05 Transportable digital video recorder system

Country Status (1)

Country Link
US (2) US8380041B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100226627A1 (en) * 1998-07-30 2010-09-09 Barton James M Multimedia Stream Processing System
US20110126107A1 (en) * 1998-07-30 2011-05-26 Tivo Inc. Closed caption tagging system
US8824865B2 (en) 1998-07-30 2014-09-02 Tivo Inc. Digital video recorder system with an integrated DVD recording device
US9258592B2 (en) 2004-11-19 2016-02-09 Tivo Inc. Method and apparatus for secure transfer of previously broadcasted content
US9521356B2 (en) 1998-07-30 2016-12-13 Tivo Inc. Digital security surveillance system
US9854199B2 (en) 1998-07-30 2017-12-26 Tivo Solutions Inc. Multiple outlet digital video recording system
US9986295B2 (en) 2009-04-08 2018-05-29 Tivo Solutions Inc. Automatic contact information transmission system
US10153000B2 (en) 2006-06-22 2018-12-11 Tivo Solutions Inc. In-band data recognition and synchronization system

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6742183B1 (en) * 1998-05-15 2004-05-25 United Video Properties, Inc. Systems and methods for advertising television networks, channels, and programs
US20070230921A1 (en) * 2001-04-05 2007-10-04 Barton James M Multimedia time warping system
US20060245741A1 (en) * 2000-03-09 2006-11-02 Cynthia Lakhansingh Digital enterainment recorder
JP2001093226A (en) * 1999-09-21 2001-04-06 Sony Corp Information communication system and method, and information communication device and method
AU3473201A (en) 2000-02-01 2001-08-14 United Video Properties Inc Methods and systems for forced advertising
TW518891B (en) * 2000-03-31 2003-01-21 United Video Properties Inc Interactive media system and method for presenting pause-time content
US7245617B2 (en) * 2003-02-07 2007-07-17 Fujitsu Limited Queuing packets written to memory for switching
US7386721B1 (en) * 2003-03-12 2008-06-10 Cisco Technology, Inc. Method and apparatus for integrated provisioning of a network device with configuration information and identity certification
JP4055631B2 (en) * 2003-04-10 2008-03-05 ソニー株式会社 The method of accessing a recording reproducing apparatus and a recording medium
US7540008B2 (en) * 2003-04-15 2009-05-26 Nds Limited Secure clock
CN1826656A (en) * 2003-06-30 2006-08-30 皇家飞利浦电子股份有限公司 Clip based trick modes
PL362782A1 (en) * 2003-10-10 2005-04-18 Advanced Digital Broadcast Ltd. Memory card for digital tv decoder and method for data processing using memory card and method for paid access to memory card
US20050166252A1 (en) * 2004-01-06 2005-07-28 Sharp Laboratories Of America, Inc. Personal video recorder
US20060026326A1 (en) * 2004-07-30 2006-02-02 Hunt Peter D Docking station that can perform an activity without a portable electronics device mated thereto
US8554045B2 (en) * 2004-11-12 2013-10-08 Ksc Industries Incorporated Docking station for portable entertainment devices
US20060195832A1 (en) * 2005-02-25 2006-08-31 Microsoft Corporation Modules for composing computer systems
KR20080005569A (en) * 2005-04-26 2008-01-14 코닌클리케 필립스 일렉트로닉스 엔.브이. A device for and a method of processing an encrypted data stream in a cryptographic system
EP1796388A1 (en) * 2005-12-12 2007-06-13 Advanced Digital Broadcast S.A. Smart card with data storage, set-top box, portable player for operating smart card with data storage and method for manufacturing smart card with data storage
US8750785B2 (en) * 2005-12-28 2014-06-10 The Directv Group, Inc. Modular receiving unit
US20080022331A1 (en) * 2006-06-30 2008-01-24 Microsoft Corporation Multi-DVR Media Stream Transition
US20080022330A1 (en) * 2006-06-30 2008-01-24 Microsoft Corporation Multi-DVR Content Management
US7721313B2 (en) 2006-06-30 2010-05-18 Microsoft Corporation Multi-DVR node communication
KR100846794B1 (en) * 2006-10-26 2008-07-16 삼성전자주식회사 Method and apparatus for storing and reproducing interactive digital broadcasting signals, and recording medium thereof
JP4991786B2 (en) * 2009-04-17 2012-08-01 株式会社東芝 Content reproducing device and a content reproducing method
US8359616B2 (en) 2009-09-30 2013-01-22 United Video Properties, Inc. Systems and methods for automatically generating advertisements using a media guidance application
EP2372500A1 (en) * 2010-03-31 2011-10-05 Vodafone Holding GmbH Computing arrangement
US8352990B2 (en) 2010-05-10 2013-01-08 Encore Interactive Inc. Realtime broadcast stream and control data conversion system and method
US8949901B2 (en) 2011-06-29 2015-02-03 Rovi Guides, Inc. Methods and systems for customizing viewing environment preferences in a viewing environment control application
GB2500613A (en) * 2012-03-26 2013-10-02 Sony Corp Audio/visual receiver that can receive non-viewing information via a transmission channel that is not currently in use.
US9679609B2 (en) 2014-08-14 2017-06-13 Utc Fire & Security Corporation Systems and methods for cataloguing audio-visual data
TW201740739A (en) * 2016-05-05 2017-11-16 Mstar Semiconductor Inc Control circuit of multimedia device and data processing method thereof

Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488179A (en) * 1980-09-27 1984-12-11 Robert Bosch Gmbh Television viewing center system
US5282247A (en) * 1992-11-12 1994-01-25 Maxtor Corporation Apparatus and method for providing data security in a computer system having removable memory
US5574662A (en) * 1992-09-21 1996-11-12 Tektronix, Inc. Disk-based digital video recorder
EP0784400A2 (en) * 1996-01-11 1997-07-16 International Business Machines Corporation Entertainment system for portable computer
US5721933A (en) * 1994-12-22 1998-02-24 Texas Instruments Incorporated Power management supply interface circuitry, systems and methods
US5808702A (en) * 1993-09-22 1998-09-15 Sony Corporation Television system
US5990881A (en) * 1994-08-31 1999-11-23 Sony Corporation Near video-on-demand signal receiver
US6018775A (en) * 1996-07-02 2000-01-25 Gateway 2000, Inc. System with a remote wireless mass storage which provides identification of a particular mass storage stored in a cradle to the system
US6072393A (en) * 1997-12-19 2000-06-06 Micro Snitch Corporation Anti-theft alarm for portable electrically operated devices
US20010016884A1 (en) * 1997-07-24 2001-08-23 Masahiko Sato Data storage unit with cyclic error detection and avoidance
US20010029583A1 (en) * 2000-02-17 2001-10-11 Dennis Palatov Video content distribution system including an interactive kiosk, a portable content storage device, and a set-top box
US6311011B1 (en) * 1998-12-11 2001-10-30 Nec Corporation Device for recording video signals and device for displaying electronic program guide
US20020003949A1 (en) * 2000-03-15 2002-01-10 Toshio Mamiya Hard disk drive
US6380978B1 (en) * 1997-10-06 2002-04-30 Dvdo, Inc. Digital video system and methods for providing same
US6442328B1 (en) * 2000-05-31 2002-08-27 Keen Personal Media, Inc. Digital video recorder connectable to an auxiliary interface of a set-top box that provides video data stream to a display device based on selection between recorded video signal received from the dig
US20020157002A1 (en) * 2001-04-18 2002-10-24 Messerges Thomas S. System and method for secure and convenient management of digital electronic content
US6480353B1 (en) * 1999-02-22 2002-11-12 Seagate Technology Llc Fixed disc drive cartridge and playback device
US20020178368A1 (en) * 2001-05-24 2002-11-28 Peng Yin Semi-fragile watermarking system for MPEG video authentication
US6535465B1 (en) * 1997-06-18 2003-03-18 Kabushiki Kaisha Optrom Integrated-disk drive having an intelligent electronic circuit mounted as part of the disk
US20030174549A1 (en) * 2000-03-31 2003-09-18 Yoshitaka Yaguchi Recording format, recording device and reproducing device
US6694200B1 (en) * 1999-04-13 2004-02-17 Digital5, Inc. Hard disk based portable device
US6839851B1 (en) * 1998-07-28 2005-01-04 Hitachi, Ltd. Digital signal processing apparatus

Family Cites Families (360)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865990A (en) 1953-10-08 1958-12-23 I D E A Inc Television receiver remote control system
US3682363A (en) 1970-10-12 1972-08-08 Diamond Eng & Dev Co Instant replay tape system
US3942190A (en) 1974-03-21 1976-03-02 Matsushita Electric Industrial Co., Ltd. Method and apparatus for uninterrupted recording and reproduction in a multichannel mode of information on tape
US4224481A (en) 1975-03-10 1980-09-23 Eli S. Jacobs Compression and expansion circuitry for a recording and playback system
JPS5857836B2 (en) 1976-02-10 1983-12-22 Sony Corp
IT1099331B (en) 1977-09-26 1985-09-18 Philips Nv Complex receiver for television
US4221176A (en) 1978-07-14 1980-09-09 Quality Mills, Inc. Profile stitching apparatus and method
US5659653A (en) 1978-09-11 1997-08-19 Thomson Consumer Electronics, S.A. Method for programming a recording device and programming device
US4258418A (en) 1978-12-28 1981-03-24 International Business Machines Corporation Variable capacity data buffer system
US4233628A (en) 1979-01-11 1980-11-11 Zenith Radio Corporation NTSC receiver useable with Teletext/Viewdata information
FR2464003A1 (en) 1979-08-17 1981-02-27 Thomson Brandt Video recording on disc and device for repetitive reading of such recording
US4313135B1 (en) 1980-07-28 1996-01-02 J Carl Cooper Method and apparatus for preserving or restoring audio to video
US4439785A (en) 1980-11-17 1984-03-27 Vvr Associates Subscriber television system
US4423480A (en) 1981-03-06 1983-12-27 International Business Machines Corporation Buffered peripheral system with priority queue and preparation for signal transfer in overlapped operations
US4388659A (en) 1981-03-06 1983-06-14 Eastman Kodak Company Tape recorder apparatus capable of playing back selected information while recording other information
US4408309A (en) 1981-07-20 1983-10-04 Kiesling Roy A Time delayed recording system
US4752834A (en) 1981-08-31 1988-06-21 Shelton Video Editors Inc. Reciprocating recording method and apparatus for controlling a video recorder so as to edit commercial messages from a recorded television signal
US5001568A (en) 1982-01-12 1991-03-19 Discovision Associates Signal evaluation by accumulation at one rate and releasing and testing at a slower rate
US4506348A (en) 1982-06-14 1985-03-19 Allied Corporation Variable digital delay circuit
US4665431A (en) 1982-06-24 1987-05-12 Cooper J Carl Apparatus and method for receiving audio signals transmitted as part of a television video signal
US5675388A (en) 1982-06-24 1997-10-07 Cooper; J. Carl Apparatus and method for transmitting audio signals as part of a television video signal
US4506358A (en) 1982-06-25 1985-03-19 At&T Bell Laboratories Time stamping for a packet switching system
US4939594A (en) 1982-12-22 1990-07-03 Lex Computer And Management Corporation Method and apparatus for improved storage addressing of video source material
US4821121A (en) 1983-04-08 1989-04-11 Ampex Corporation Electronic still store with high speed sorting and method of operation
US4755889A (en) 1983-04-19 1988-07-05 Compusonics Video Corporation Audio and video digital recording and playback system
US4566034A (en) 1983-05-02 1986-01-21 Rca Corporation Remote control transmitter arrangement for one or more television devices
US4979050A (en) 1983-12-02 1990-12-18 Lex Computer And Management Corporation Video composition method for assembling video segments
AU559311B2 (en) 1984-02-15 1987-03-05 Matsushita Electric Industrial Co., Ltd. Pay tv charge/time data display
GB8408113D0 (en) 1984-03-29 1984-05-10 Quantel Ltd Video editing/viewing systems
US4689022A (en) 1984-04-30 1987-08-25 John Peers System for control of a video storage means by a programmed processor
US4789961A (en) 1984-06-25 1988-12-06 Kirsch Technologies, Inc. Computer memory back-up with automatic tape positioning
US4805217A (en) 1984-09-26 1989-02-14 Mitsubishi Denki Kabushiki Kaisha Receiving set with playback function
US5202761A (en) 1984-11-26 1993-04-13 Cooper J Carl Audio synchronization apparatus
JPS61133089A (en) * 1984-12-03 1986-06-20 Hitachi Ltd Portable vtr containing device
US4602297A (en) 1985-01-22 1986-07-22 Morris Reese System for editing commercial messages from recorded television broadcasts
US4633331A (en) 1985-06-06 1986-12-30 Picotrin Technology, Inc. Information signal delay system utilizing random access memory
US4760442A (en) 1985-07-10 1988-07-26 American Telephone And Telegraph Company, At&T Bell Laboratories Wideband digital signal distribution system
US4706121B1 (en) 1985-07-12 1993-12-14 Insight Telecast, Inc. Tv schedule system and process
USRE33535E (en) 1985-09-16 1991-02-12 Audio to video timing equalizer method and apparatus
US4897867A (en) 1985-09-30 1990-01-30 American Telephone And Telegraph Company, At&T Bell Laboratories Method of and an arrangement for forwarding a customer order
US4723181A (en) 1986-09-24 1988-02-02 Eastman Kodak Company Tape memory with integral disk index on reel
US5089885A (en) 1986-11-14 1992-02-18 Video Jukebox Network, Inc. Telephone access display system with remote monitoring
US5019900A (en) 1986-11-14 1991-05-28 Video Jukebox Network, Inc. Telephone access display system
US4761684A (en) 1986-11-14 1988-08-02 Video Jukebox Network Telephone access display system
JPS63146298A (en) 1986-12-10 1988-06-18 Mitsubishi Electric Corp Variable work length shift register
GB8631027D0 (en) 1986-12-30 1987-02-04 Questech Ltd Recording editing & moving television pictures
US5021893A (en) 1987-12-17 1991-06-04 Duplitronics, Inc. High speed tape duplicating machine
GB2201314B (en) 1987-02-18 1991-02-27 Sony Corp Digital video signal processing methods and apparatus
US4816905A (en) 1987-04-30 1989-03-28 Gte Laboratories Incorporated & Gte Service Corporation Telecommunication system with video and audio frames
US5109281A (en) 1987-05-25 1992-04-28 Hitachi, Ltd. Video printer with separately stored digital signals printed in separate areas to form a print of multiple images
DE3819393C2 (en) 1987-06-08 1990-09-27 Canon K.K., Tokio/Tokyo, Jp
US5208665A (en) 1987-08-20 1993-05-04 Telaction Corporation Presentation player for an interactive digital communication system
JPS6489678A (en) 1987-09-30 1989-04-04 Hitachi Ltd Signal processing system
CA1317667C (en) 1987-11-02 1993-05-11 Michel Dufresne Catv subscriber terminal transmission control
US5121476A (en) 1988-02-22 1992-06-09 Yee Keen Y TV data capture device
GB8807050D0 (en) 1988-03-24 1988-04-27 British Telecomm Communication system
US5101354A (en) 1988-04-18 1992-03-31 Brunswick Bowling & Billards Corporation Multi-lane bowling system with remote operator control
US5018186A (en) 1988-04-21 1991-05-21 Canon Kabushiki Kaisha Communicating apparatus providing discriminated voice and/or image communication
US5233603A (en) 1988-04-21 1993-08-03 Nec Corporation Packet switch suitable for integrated circuit implementation
US4924387A (en) 1988-06-20 1990-05-08 Jeppesen John C Computerized court reporting system
US5134499A (en) 1988-08-04 1992-07-28 Yamaha Corporation Video recording apparatus having control means provided therein for independently controlling the writing head and the reading head
JP3002471B2 (en) 1988-08-19 2000-01-24 株式会社日立製作所 Program distribution device
JPH0258984A (en) 1988-08-24 1990-02-28 Hashimoto Corp Television receiver having repeating action
US4972396A (en) 1988-10-24 1990-11-20 Honeywell Inc. Multiple independently positionable recording-reading head disk system
JP2779631B2 (en) * 1988-11-30 1998-07-23 キヤノン株式会社 Power Supply
US4949187A (en) 1988-12-16 1990-08-14 Cohen Jason M Video communications system having a remotely controlled central source of video and audio data
US5057932A (en) 1988-12-27 1991-10-15 Explore Technology, Inc. Audio/video transceiver apparatus including compression means, random access storage means, and microwave transceiver means
US4963995A (en) 1988-12-27 1990-10-16 Explore Technology, Inc. Audio/video transceiver apparatus including compression means
DE3909334C3 (en) 1989-03-17 1998-02-12 Rundfunkschutzrechte Ev Circuitry for selectively receiving and recording predetermined radio and / or television broadcasts
US4963866A (en) 1989-03-27 1990-10-16 Digital Recorders, Inc. Multi channel digital random access recorder-player
JPH02266774A (en) * 1989-04-07 1990-10-31 Sharp Corp Portable picture presenting device
US5047857A (en) 1989-04-20 1991-09-10 Thomson Consumer Electronics, Inc. Television system with zoom capability for at least one inset picture
JP2644888B2 (en) * 1989-04-24 1997-08-25 株式会社日立画像情報システム Cassette loading device
US4947244A (en) 1989-05-03 1990-08-07 On Command Video Corporation Video selection and distribution system
US5014125A (en) 1989-05-05 1991-05-07 Cableshare, Inc. Television system for the interactive distribution of selectable video presentations
US5027241A (en) 1989-06-01 1991-06-25 Quantum Corporation Data head load beam for height compacted, low power fixed head and disk assembly
IT1230235B (en) 1989-06-07 1991-10-18 Telettra Spa Structuring and transmission of information packets generated by encoder for video signals.
JPH0334685A (en) * 1989-06-30 1991-02-14 Hitachi Ltd Video recorder
US5226141A (en) 1989-07-14 1993-07-06 Touch Technologies, Inc. Variable capacity cache memory
ES2104609T3 (en) 1989-08-23 1997-10-16 Delta Beta Pty Ltd Transmission optimization programs.
US5475656A (en) * 1989-09-27 1995-12-12 Hitachi, Ltd. Optical disk memory and information processing apparatus
US4949169A (en) 1989-10-27 1990-08-14 International Business Machines Corporation Audio-video data interface for a high speed communication link in a video-graphics display window environment
US5214768A (en) 1989-11-01 1993-05-25 E-Systems, Inc. Mass data storage library
JP2781625B2 (en) * 1989-12-13 1998-07-30 株式会社日立製作所 The information processing apparatus
US5251009A (en) 1990-01-22 1993-10-05 Ciba-Geigy Corporation Interferometric measuring arrangement for refractive index measurements in capillary tubes
US5130792A (en) 1990-02-01 1992-07-14 Usa Video Inc. Store and forward video system
US5245430A (en) 1990-02-08 1993-09-14 Sony Corporation Timebase corrector with drop-out compensation
US5155663A (en) * 1990-02-19 1992-10-13 Fuji Photo Film Co., Ltd. Memory cartridge system with adapter
US5625464A (en) 1990-03-16 1997-04-29 Thomson Consumer Electronics Continuous television transmission reproduction and playback
JPH0410880A (en) 1990-04-27 1992-01-16 Matsushita Electric Ind Co Ltd Method for recording and reproducing video signal
US5519684A (en) 1990-05-14 1996-05-21 Casio Computer Co., Ltd. Digital recorder for processing in parallel data stored in multiple tracks
JPH0437384A (en) 1990-06-01 1992-02-07 Pioneer Electron Corp High vision signal recorder and its recording medium
US5237648A (en) 1990-06-08 1993-08-17 Apple Computer, Inc. Apparatus and method for editing a video recording by selecting and displaying video clips
JP3057719B2 (en) * 1990-06-22 2000-07-04 ソニー株式会社 Volume control circuit
US5513306A (en) 1990-08-09 1996-04-30 Apple Computer, Inc. Temporal event viewing and editing system
JP3141241B2 (en) * 1990-08-24 2001-03-05 ソニー株式会社 Disk recording apparatus and disk reproducing apparatus
US5126982A (en) 1990-09-10 1992-06-30 Aaron Yifrach Radio receiver and buffer system therefore
EP0969662B1 (en) 1990-09-10 2002-07-03 Starsight Telecast, Inc. A television schedule system
US5093718A (en) 1990-09-28 1992-03-03 Inteletext Systems, Inc. Interactive home information system
US5233423A (en) 1990-11-26 1993-08-03 North American Philips Corporation Embedded commericals within a television receiver using an integrated electronic billboard
US5172413A (en) 1990-12-20 1992-12-15 Sasktel Secure hierarchial video delivery system and method
US5168353A (en) 1990-12-21 1992-12-01 Gte Laboratories Incorporated Video distribution system allowing viewer access to time staggered indentical prerecorded programs
US5132992A (en) 1991-01-07 1992-07-21 Paul Yurt Audio and video transmission and receiving system
US5253275A (en) 1991-01-07 1993-10-12 H. Lee Browne Audio and video transmission and receiving system
US5311423A (en) 1991-01-07 1994-05-10 Gte Service Corporation Schedule management method
US5285272A (en) 1991-02-26 1994-02-08 Sasktel Video store and forward on demand apparatus and method
US5241428A (en) 1991-03-12 1993-08-31 Goldwasser Eric P Variable-delay video recorder
US5329307A (en) 1991-05-21 1994-07-12 Mita Industrial Co., Ltd. Image forming apparatus and method of controlling image forming apparatus
JP2766919B2 (en) 1991-06-07 1998-06-18 三菱電機株式会社 Digital signal recording and reproducing apparatus, a digital signal recording apparatus, digital signal reproducing apparatus
WO1992022983A2 (en) 1991-06-11 1992-12-23 Browne H Lee Large capacity, random access, multi-source recorder player
DE4121023C2 (en) * 1991-06-26 1994-06-01 Smartdiskette Gmbh In a data processing device insertable member
US5488409A (en) 1991-08-19 1996-01-30 Yuen; Henry C. Apparatus and method for tracking the playing of VCR programs
US5528281A (en) 1991-09-27 1996-06-18 Bell Atlantic Network Services Method and system for accessing multimedia data over public switched telephone network
US5247347A (en) 1991-09-27 1993-09-21 Bell Atlantic Network Services, Inc. Pstn architecture for video-on-demand services
JPH0828037B2 (en) * 1991-10-31 1996-03-21 富士通株式会社 Spindle sync control system
CA2081742C (en) 1991-11-13 2000-05-23 Anthony M. Radice Apparatus and method for recording random data on a digital video recorder
US5635984A (en) 1991-12-11 1997-06-03 Samsung Electronics Co., Ltd. Multi-picture control circuit and method for electronic still camera
JPH05181803A (en) * 1991-12-30 1993-07-23 Hitachi Ltd Electronic publishing system
FR2686172B1 (en) * 1992-01-14 1996-09-06 Gemplus Card Int Plug-in card for microcomputer forming card reader flush contacts.
DE4201031C2 (en) 1992-01-14 1994-09-01 Ludwig J Prof Dr Issing Program selection system for automated selection of television or radio programs on the individual interests of the subscriber
US6553178B2 (en) 1992-02-07 2003-04-22 Max Abecassis Advertisement subsidized video-on-demand system
DE69223996D1 (en) 1992-02-11 1998-02-12 Intelligent Instr Corp Adaptive video files processor and process for its application
US5355450A (en) 1992-04-10 1994-10-11 Avid Technology, Inc. Media composer with adjustable source material compression
US5930444A (en) 1992-04-23 1999-07-27 Camhi; Elie Simultaneous recording and playback apparatus
US5287182A (en) 1992-07-02 1994-02-15 At&T Bell Laboratories Timing recovery for variable bit-rate video on asynchronous transfer mode (ATM) networks
US5412416A (en) 1992-08-07 1995-05-02 Nbl Communications, Inc. Video media distribution network apparatus and method
EP0594241B1 (en) 1992-10-19 1999-05-06 Philips Electronics N.V. Arrangement for storing an information signal in a memory and retrieving the information signal from said memory
DE69324760D1 (en) 1992-10-19 1999-06-10 Koninkl Philips Electronics Nv Apparatus for storing a data signal in a memory and reproducing the data signal from this memory
US5371551A (en) 1992-10-29 1994-12-06 Logan; James Time delayed digital video system using concurrent recording and playback
US5361261A (en) 1992-11-02 1994-11-01 National Semiconductor Corporation Frame-based transmission of data
US5357276A (en) 1992-12-01 1994-10-18 Scientific-Atlanta, Inc. Method of providing video on demand with VCR like functions
US5329320A (en) 1992-12-03 1994-07-12 Aharon Yifrach TV receiver and buffer system therefor
US5600364A (en) 1992-12-09 1997-02-04 Discovery Communications, Inc. Network controller for cable television delivery systems
JP3384009B2 (en) 1992-12-25 2003-03-10 キヤノン株式会社 Digital television receiver
US5317603A (en) 1992-12-30 1994-05-31 Gte Government Systems Corporation Isochronous interface apparatus
US5317604A (en) 1992-12-30 1994-05-31 Gte Government Systems Corporation Isochronous interface method
US5696866A (en) 1993-01-08 1997-12-09 Srt, Inc. Method and apparatus for eliminating television commercial messages
EP0609054A3 (en) 1993-01-25 1996-04-03 Matsushita Electric Ind Co Ltd Method and apparatus for recording or reproducing video data on or from storage media.
FR2700908B1 (en) 1993-01-26 1995-02-24 Thomson Consumer Electronics Buffer television receiver.
JPH077715A (en) 1993-01-29 1995-01-10 Immix A Division Of Carton Internatl Corp Method for storing and extracting video signal from disk
US5440334A (en) 1993-02-01 1995-08-08 Explore Technology, Inc. Broadcast video burst transmission cyclic distribution apparatus and method
US5590195A (en) 1993-03-15 1996-12-31 Command Audio Corporation Information dissemination using various transmission modes
US6330334B1 (en) 1993-03-15 2001-12-11 Command Audio Corporation Method and system for information dissemination using television signals
US5406626A (en) 1993-03-15 1995-04-11 Macrovision Corporation Radio receiver for information dissemenation using subcarrier
US5535008A (en) 1993-03-16 1996-07-09 Victor Company Of Japan, Ltd. Method for jump-reproducing video data of moving picture coded with high efficiency
US5856930A (en) * 1993-03-26 1999-01-05 Sony Corporation Disc-shaped recording medium, disc recording apparatus and disc reproducing apparatus
US5787225A (en) 1993-03-29 1998-07-28 Matsushita Electric Industrial Co., Ltd. Optical disk apparatus for the reproduction of compressed data
JPH06311119A (en) * 1993-04-20 1994-11-04 Sony Corp Data broadcasting system
US5488433A (en) * 1993-04-21 1996-01-30 Kinya Washino Dual compression format digital video production system
US5450140A (en) 1993-04-21 1995-09-12 Washino; Kinya Personal-computer-based video production system
US5428731A (en) 1993-05-10 1995-06-27 Apple Computer, Inc. Interactive multimedia delivery engine
ES2118216T3 (en) 1993-05-19 1998-09-16 Alsthom Cge Alcatel Video service device.
US5550982A (en) 1993-06-24 1996-08-27 Starlight Networks Video application server
US5546250A (en) * 1993-06-24 1996-08-13 Maxtor Corporation Elastomer gasket that extends around the outer edge of a hard drive
US5438423C1 (en) 1993-06-25 2002-08-27 Grass Valley Us Inc Time warping for video viewing
DE4422301C2 (en) 1993-06-28 1996-11-28 Gold Star Co Device and method for recording / reproducing a transmission signal
US5442390A (en) 1993-07-07 1995-08-15 Digital Equipment Corporation Video on demand with memory accessing and or like functions
US5414455A (en) 1993-07-07 1995-05-09 Digital Equipment Corporation Segmented video on demand system
JP3463352B2 (en) 1993-07-23 2003-11-05 ソニー株式会社 Reproducing apparatus
US5550594A (en) 1993-07-26 1996-08-27 Pixel Instruments Corp. Apparatus and method for synchronizing asynchronous signals
US7137011B1 (en) * 1993-09-01 2006-11-14 Sandisk Corporation Removable mother/daughter peripheral card
US5761372A (en) * 1993-09-03 1998-06-02 Sony Corporation Recording reservation central control system for one or more VTR's
US5388264A (en) 1993-09-13 1995-02-07 Taligent, Inc. Object oriented framework system for routing, editing, and synchronizing MIDI multimedia information using graphically represented connection object
US6256704B1 (en) 1993-09-16 2001-07-03 International Business Machines Corporation Task management for data accesses to multiple logical partitions on physical disk drives in computer systems
DE69414275T2 (en) 1993-09-16 1999-05-06 Toshiba Kawasaki Kk An apparatus for synchronizing compressed video audio signals un
JP3038668B2 (en) 1993-09-20 2000-05-08 富士通株式会社 Video information distribution system
KR0165712B1 (en) 1993-09-30 1999-03-20 오오가 노리오 Digital recording and reproducing apparatus and index recording method
US5557724A (en) 1993-10-12 1996-09-17 Intel Corporation User interface, method, and apparatus selecting and playing channels having video, audio, and/or text streams
US5581479A (en) 1993-10-15 1996-12-03 Image Telecommunications Corp. Information service control point, which uses different types of storage devices, which retrieves information as blocks of data, and which uses a trunk processor for transmitting information
US6341195B1 (en) 1994-12-28 2002-01-22 E-Guide, Inc. Apparatus and methods for a television on-screen guide
US5452006A (en) 1993-10-25 1995-09-19 Lsi Logic Corporation Two-part synchronization scheme for digital video decoders
CA2118169A1 (en) 1993-10-27 1995-04-28 Michael R.C. Seaman Event architecture for system management in an operating system
JPH07130150A (en) 1993-10-29 1995-05-19 Ricoh Co Ltd Information equipment
US5481542A (en) 1993-11-10 1996-01-02 Scientific-Atlanta, Inc. Interactive information services control system
US6301711B1 (en) 1993-11-30 2001-10-09 International Business Machines Corporation System and method for the network support of full motion video using a redundant array of inexpensive disks
US5485617A (en) 1993-12-13 1996-01-16 Microsoft Corporation Method and system for dynamically generating object connections
US5465120A (en) 1994-02-07 1995-11-07 The Grass Valley Group, Inc. Spiral buffer for non-linear editing
US5535137A (en) 1994-02-14 1996-07-09 Sony Corporation Of Japan Random access audio/video processor with compressed video resampling to allow higher bandwidth throughput
US5508940A (en) 1994-02-14 1996-04-16 Sony Corporation Of Japan And Sony Electronics, Inc. Random access audio/video processor with multiple outputs
EP0696798A4 (en) 1994-02-28 2001-10-24 Sony Corp Method and device for recording data, data recording medium, and method and device for reproducing data
DE69535679D1 (en) 1994-03-16 2008-02-14 Sony Corp Picture Edition System
US5629732A (en) 1994-03-29 1997-05-13 The Trustees Of Columbia University In The City Of New York Viewer controllable on-demand multimedia service
US5615401A (en) 1994-03-30 1997-03-25 Sigma Designs, Inc. Video and audio data presentation interface
US5521630A (en) 1994-04-04 1996-05-28 International Business Machines Corporation Frame sampling scheme for video scanning in a video-on-demand system
US5579183A (en) 1994-04-08 1996-11-26 U.S. Philips Corporation Recording and reproducing an MPEG information signal on/from a record carrier
US5563714A (en) 1994-04-21 1996-10-08 Sony Corporation Digital signal processing apparatus for recording and reproducing time-base compressed digital image data in an image transmission system
US5583652A (en) 1994-04-28 1996-12-10 International Business Machines Corporation Synchronized, variable-speed playback of digitally recorded audio and video
US5761166A (en) 1994-05-06 1998-06-02 Sedlmayr; Steven R. Method and system for simultaneous storage and/or retrieval (storval) of a plurality of data on a disk means
US5701383A (en) 1994-05-20 1997-12-23 Gemstar Development Corporation Video time-shifting apparatus
US5477263A (en) 1994-05-26 1995-12-19 Bell Atlantic Network Services, Inc. Method and apparatus for video on demand with fast forward, reverse and channel pause
US5583561A (en) 1994-06-07 1996-12-10 Unisys Corporation Multi-cast digital video data server using synchronization groups
US5642171A (en) 1994-06-08 1997-06-24 Dell Usa, L.P. Method and apparatus for synchronizing audio and video data streams in a multimedia system
US5612749A (en) 1994-06-27 1997-03-18 Bacher; Emil G. Apparatus and method for receiving messages from a central transmitter with a television receiver
US5572442A (en) * 1994-07-21 1996-11-05 Information Highway Media Corporation System for distributing subscription and on-demand audio programming
US6239794B1 (en) 1994-08-31 2001-05-29 E Guide, Inc. Method and system for simultaneously displaying a television program and information about the program
US5712976A (en) 1994-09-08 1998-01-27 International Business Machines Corporation Video data streamer for simultaneously conveying same one or different ones of data blocks stored in storage node to each of plurality of communication nodes
CA2153445C (en) 1994-09-08 2002-05-21 Ashok Raj Saxena Video optimized media streamer user interface
US5586264A (en) 1994-09-08 1996-12-17 Ibm Corporation Video optimized media streamer with cache management
US5603058A (en) 1994-09-08 1997-02-11 International Business Machines Corporation Video optimized media streamer having communication nodes received digital data from storage node and transmitted said data to adapters for generating isochronous digital data streams
US5761417A (en) 1994-09-08 1998-06-02 International Business Machines Corporation Video data streamer having scheduler for scheduling read request for individual data buffers associated with output ports of communication node to one storage node
US5668948A (en) 1994-09-08 1997-09-16 International Business Machines Corporation Media streamer with control node enabling same isochronous streams to appear simultaneously at output ports or different streams to appear simultaneously at output ports
US5559999A (en) 1994-09-09 1996-09-24 Lsi Logic Corporation MPEG decoding system including tag list for associating presentation time stamps with encoded data units
DE69631180D1 (en) 1995-09-11 2004-01-29 Matsushita Electric Ind Co Ltd Fernsehsignalaufnahme- and -wiedergabeanlage
DE4434034A1 (en) 1994-09-23 1996-03-28 Thomson Brandt Gmbh Recording tape marking and evaluating method, e.g. for TV advertisement fade-in
US5598352A (en) 1994-09-30 1997-01-28 Cirrus Logic, Inc. Method and apparatus for audio and video synchronizing in MPEG playback systems
US5920842A (en) 1994-10-12 1999-07-06 Pixel Instruments Signal synchronization
US5600379A (en) 1994-10-13 1997-02-04 Yves C. Faroudia Television digital signal processing apparatus employing time-base correction
US5614940A (en) 1994-10-21 1997-03-25 Intel Corporation Method and apparatus for providing broadcast information with indexing
TW301101B (en) 1994-11-17 1997-03-21 Matsushita Electric Ind Co Ltd
WO1996017306A2 (en) 1994-11-21 1996-06-06 Oracle Corporation Media server
US5774170A (en) 1994-12-13 1998-06-30 Hite; Kenneth C. System and method for delivering targeted advertisements to consumers
JP3248380B2 (en) 1994-12-15 2002-01-21 ソニー株式会社 Data decoding apparatus and data decoding method
JP3536866B2 (en) 1994-12-22 2004-06-14 ソニー株式会社 Video recording and reproducing apparatus and method
US5751338A (en) 1994-12-30 1998-05-12 Visionary Corporate Technologies Methods and systems for multimedia communications via public telephone networks
JPH08191416A (en) 1995-01-10 1996-07-23 Sony Corp Digital video/audio processor
US5619337A (en) 1995-01-27 1997-04-08 Matsushita Electric Corporation Of America MPEG transport encoding/decoding system for recording transport streams
US6002832A (en) 1995-02-09 1999-12-14 Matsushita Electric Industrial Co., Ltd. Apparatus and method for recording and reproducing data
US5619247A (en) 1995-02-24 1997-04-08 Smart Vcr Limited Partnership Stored program pay-per-play
US5703655A (en) 1995-03-24 1997-12-30 U S West Technologies, Inc. Video programming retrieval using extracted closed caption data which has been partitioned and stored to facilitate a search and retrieval process
US5517257A (en) 1995-03-28 1996-05-14 Microsoft Corporation Video control user interface for interactive television systems and method for controlling display of a video movie
DE69631393T2 (en) 1995-03-29 2004-10-21 Hitachi Ltd Decoder for compressed and multiplexed video and audio data
JP3393242B2 (en) * 1995-03-30 2003-04-07 ソニー株式会社 Information transmission method and apparatus
US5808607A (en) 1995-04-07 1998-09-15 International Business Machines Corporation Multi-node media server that provides video to a plurality of terminals from a single buffer when video requests are close in time
US5729741A (en) 1995-04-10 1998-03-17 Golden Enterprises, Inc. System for storage and retrieval of diverse types of information obtained from different media sources which includes video, audio, and text transcriptions
JP4108121B2 (en) 1995-04-21 2008-06-25 テラヨン コミュニケーションズ システムズ, インコーポレイテッド Method and apparatus for recording program data
EP0740478B1 (en) 1995-04-27 2002-08-28 Hitachi, Ltd. Method and apparatus for receiving and/or reproducing digital signals
US5805763A (en) 1995-05-05 1998-09-08 Microsoft Corporation System and method for automatically recording programs in an interactive viewing system
US5852705A (en) 1995-05-22 1998-12-22 Sun Microsytems, Inc. Method and apparatus for guaranteeing average case disk transfer bandwidth and seek time for a video server
US5914941A (en) * 1995-05-25 1999-06-22 Information Highway Media Corporation Portable information storage/playback apparatus having a data interface
US5604544A (en) 1995-05-31 1997-02-18 International Business Machines Corporation Video receiver display of cursor overlaying video
JP3184763B2 (en) 1995-06-07 2001-07-09 インターナショナル・ビジネス・マシーンズ・コーポレ−ション Multimedia direct access storage device and a formatting method
US5572261A (en) 1995-06-07 1996-11-05 Cooper; J. Carl Automatic audio to video timing measurement device and method
US6181867B1 (en) 1995-06-07 2001-01-30 Intervu, Inc. Video storage and retrieval system
US5721878A (en) 1995-06-07 1998-02-24 International Business Machines Corporation Multimedia control system and method for controlling multimedia program presentation
US5721815A (en) 1995-06-07 1998-02-24 International Business Machines Corporation Media-on-demand communication system and method employing direct access storage device
US5751282A (en) 1995-06-13 1998-05-12 Microsoft Corporation System and method for calling video on demand using an electronic programming guide
US5920572A (en) 1995-06-30 1999-07-06 Divicom Inc. Transport stream decoder/demultiplexer for hierarchically organized audio-video streams
US6112226A (en) 1995-07-14 2000-08-29 Oracle Corporation Method and apparatus for concurrently encoding and tagging digital information for allowing non-sequential access during playback
US6138147A (en) 1995-07-14 2000-10-24 Oracle Corporation Method and apparatus for implementing seamless playback of continuous media feeds
US5659539A (en) 1995-07-14 1997-08-19 Oracle Corporation Method and apparatus for frame accurate access of digital audio-visual information
US6359636B1 (en) 1995-07-17 2002-03-19 Gateway, Inc. Graphical user interface for control of a home entertainment system
JP3698273B2 (en) 1995-07-20 2005-09-21 ソニー株式会社 Electronic program guide transmission apparatus and method, an electronic program guide receiving apparatus and method, and an electronic program guide transmission and reception system and method,
JP3484832B2 (en) 1995-08-02 2004-01-06 ソニー株式会社 Recording apparatus, a recording method, reproducing apparatus and method
JP3348339B2 (en) 1995-08-02 2002-11-20 ソニー株式会社 Data recording method and apparatus, a data reproducing method and apparatus
JP3493822B2 (en) 1995-08-04 2004-02-03 ソニー株式会社 Data recording method and apparatus, as well as, data reproducing method and apparatus
JPH0964770A (en) 1995-08-18 1997-03-07 Matsushita Electric Ind Co Ltd Tuner integrally receiving ground broadcasting and satellite broadcasting
US6272672B1 (en) 1995-09-06 2001-08-07 Melvin E. Conway Dataflow processing with events
JPH0998362A (en) 1995-09-29 1997-04-08 Nec Corp Multimedia communication system
TW303570B (en) 1995-09-29 1997-04-21 Matsushita Electric Ind Co Ltd
US5949948A (en) 1995-11-20 1999-09-07 Imedia Corporation Method and apparatus for implementing playback features for compressed video data
US5991496A (en) 1995-11-29 1999-11-23 Sony Corporation Recording/reproducing apparatus and method thereof
US6169843B1 (en) 1995-12-01 2001-01-02 Harmonic, Inc. Recording and playback of audio-video transport streams
US5751280A (en) 1995-12-11 1998-05-12 Silicon Graphics, Inc. System and method for media stream synchronization with a base atom index file and an auxiliary atom index file
JP3277787B2 (en) 1995-12-21 2002-04-22 ソニー株式会社 Audio and video data recording and reproducing apparatus
US5899578A (en) 1995-12-25 1999-05-04 Sony Corporation Digital signal processor, processing method, digital signal recording/playback device and digital signal playback method
US5778137A (en) 1995-12-28 1998-07-07 Sun Microsystems, Inc. Videostream management system
US5774186A (en) 1995-12-29 1998-06-30 International Business Machines Corporation Interruption tolerant video program viewing
JP3269768B2 (en) 1996-01-16 2002-04-02 株式会社東芝 The digital signal receiver
JPH09265731A (en) * 1996-01-24 1997-10-07 Sony Corp Speech reproducing device and its method, speech recording device and its method, speech recording and reproducing system, speech data transfer method, information receiving device, and reproducing device
CN1144455C (en) 1996-02-08 2004-03-31 松下电器产业株式会社 Television receiver
US5995709A (en) 1996-12-27 1999-11-30 Victor Company Of Japan, Ltd. MPEG decoder and optical video disc player using the same
US5909257A (en) 1996-02-27 1999-06-01 Victor Company Of Japan, Ltd. Apparatus and method of receiving broadcasted digital signal
JP2848326B2 (en) 1996-03-28 1999-01-20 日本電気株式会社 Mpeg coded image decoding apparatus
KR100439879B1 (en) 1996-04-12 2004-12-03 마츠시타 덴끼 산교 가부시키가이샤 An optical disc in which video titles to be subjected to an audio / video function and video titles not to be recorded are recorded and their differences can be instantly recognized,
US6445738B1 (en) 1996-04-25 2002-09-03 Opentv, Inc. System and method for creating trick play video streams from a compressed normal play video bitstream
JP3299547B2 (en) 1996-05-24 2002-07-08 株式会社日立製作所 Gas-insulated apparatus the partial discharge detection device
US5940074A (en) 1996-06-03 1999-08-17 Webtv Networks, Inc. Remote upgrade of software over a network
US5815671A (en) 1996-06-11 1998-09-29 Command Audio Corporation Method and apparatus for encoding and storing audio/video information for subsequent predetermined retrieval
JPH1023377A (en) 1996-07-05 1998-01-23 Toshiba Corp Text data processor using television receiver
US6151059A (en) 1996-08-06 2000-11-21 Starsight Telecast, Inc. Electronic program guide with interactive areas
US5870553A (en) 1996-09-19 1999-02-09 International Business Machines Corporation System and method for on-demand video serving from magnetic tape using disk leader files
US7055166B1 (en) 1996-10-03 2006-05-30 Gotuit Media Corp. Apparatus and methods for broadcast monitoring
JP3063824B2 (en) 1996-10-29 2000-07-12 日本電気株式会社 Audio-video synchronous playback apparatus
US5862342A (en) 1996-10-31 1999-01-19 Sensormatic Electronics Corporation Intelligent video information management system with information archiving capabilities
US6369855B1 (en) 1996-11-01 2002-04-09 Texas Instruments Incorporated Audio and video decoder circuit and system
US6005564A (en) 1996-12-05 1999-12-21 Interval Research Corporation Display pause with elastic playback
GB2325776B (en) 1996-12-09 2000-10-11 Sony Corp Editing device,editing system and editing method
JP3575205B2 (en) 1996-12-13 2004-10-13 ソニー株式会社 The remote commander and the network connection system
KR200197410Y1 (en) 1996-12-19 2000-10-02 윤종용 Apparatus for recording and reproducing of digital broading signal
US6253375B1 (en) 1997-01-13 2001-06-26 Diva Systems Corporation System for interactively distributing information services
CN1189045A (en) 1997-01-20 1998-07-29 明碁电脑股份有限公司 Double-image display device and method
US5864582A (en) 1997-02-24 1999-01-26 Ford Global Technologies, Inc. Pulse width extension with analog command
JPH10302030A (en) * 1997-02-28 1998-11-13 Toshiba Corp Connection device and information processor
US6292618B1 (en) 1997-03-11 2001-09-18 Hitachi, Ltd. Image recording and reproducing apparatus
US5832085A (en) 1997-03-25 1998-11-03 Sony Corporation Method and apparatus storing multiple protocol, compressed audio video data
US5815689A (en) 1997-04-04 1998-09-29 Microsoft Corporation Method and computer program product for synchronizing the processing of multiple data streams and matching disparate processing rates using a standardized clock mechanism
US6209041B1 (en) 1997-04-04 2001-03-27 Microsoft Corporation Method and computer program product for reducing inter-buffer data transfers between separate processing components
US6167083A (en) 1997-04-04 2000-12-26 Avid Technology, Inc. Computer system and process for capture editing and playback of motion video compressed using interframe and intraframe techniques
US5963202A (en) 1997-04-14 1999-10-05 Instant Video Technologies, Inc. System and method for distributing and managing digital video information in a video distribution network
JP3988172B2 (en) * 1997-04-23 2007-10-10 ソニー株式会社 The information processing apparatus and method, and recording medium
JP3988205B2 (en) * 1997-05-27 2007-10-10 ソニー株式会社 Video signal recording and reproducing apparatus, a video signal recording and reproducing method, a video signal reproducing apparatus and a video signal reproducing method
EP1143731B1 (en) 1997-06-02 2009-05-13 Sony Electronics Inc. Displaying internet content and television programming
JPH1169279A (en) 1997-06-10 1999-03-09 Matsushita Electric Ind Co Ltd Recording and reproducing device
US20030040962A1 (en) * 1997-06-12 2003-02-27 Lewis William H. System and data management and on-demand rental and purchase of digital data products
US6353461B1 (en) 1997-06-13 2002-03-05 Panavision, Inc. Multiple camera video assist control system
KR100255108B1 (en) * 1997-06-18 2000-05-01 Samsung Electronics Co Ltd Chip card
US6317885B1 (en) 1997-06-26 2001-11-13 Microsoft Corporation Interactive entertainment and information system using television set-top box
US5889915A (en) 1997-08-07 1999-03-30 Hewton; Alfred F. Digital storage device for a television
US6181706B1 (en) 1997-09-26 2001-01-30 International Business Machines Corporation Common buffer for multiple streams and control registers in an MPEG-2 compliant transport register
JPH11112925A (en) 1997-10-01 1999-04-23 Sony Corp Signal recording and/or reproducing device and their method, signal recording device and its method, and signal reproducing device and its method
US6327418B1 (en) 1997-10-10 2001-12-04 Tivo Inc. Method and apparatus implementing random access and time-based functions on a continuous stream of formatted digital data
JP4018823B2 (en) 1997-10-24 2007-12-05 株式会社大宇エレクトロニクスDaewoo Electronics Corporation Mpeg-2 broadcast program storage and playback system
US5928347A (en) * 1997-11-18 1999-07-27 Shuttle Technology Group Ltd. Universal memory card interface apparatus
US6480667B1 (en) 1997-12-23 2002-11-12 Intel Corporation Method of time shifting to simultaneously record and play a data stream
US6490000B1 (en) 1997-12-24 2002-12-03 Echostar Communications Corporation Method and apparatus for time shifting and controlling broadcast audio and video signals
US6172712B1 (en) 1997-12-31 2001-01-09 Intermec Ip Corp. Television with hard disk drive
US6330675B1 (en) 1998-02-13 2001-12-11 Liquid Audio, Inc. System and method for secure transfer of digital data to a local recordable storage medium
US6282209B1 (en) 1998-03-02 2001-08-28 Matsushita Electric Industrial Co., Ltd. Method of and system capable of precisely clipping a continuous medium obtained from a multiplexed bit stream
US6424791B1 (en) 1998-03-27 2002-07-23 Sony Corporation System and method for providing selection of timer recording
DE69938700D1 (en) * 1998-04-03 2008-06-26 Matsushita Electric Ind Co Ltd Portable display system
US6788882B1 (en) 1998-04-17 2004-09-07 Timesurf, L.L.C. Systems and methods for storing a plurality of video streams on re-writable random-access media and time-and channel- based retrieval thereof
US7272298B1 (en) 1998-05-06 2007-09-18 Burst.Com, Inc. System and method for time-shifted program viewing
JPH11328851A (en) * 1998-05-19 1999-11-30 Sony Corp Terminal device and reproduction method
JPH11339462A (en) * 1998-05-22 1999-12-10 Sony Corp Recording medium and drive device
US6154771A (en) 1998-06-01 2000-11-28 Mediastra, Inc. Real-time receipt, decompression and play of compressed streaming video/hypervideo; with thumbnail display of past scenes and with replay, hyperlinking and/or recording permissively intiated retrospectively
US6229532B1 (en) 1998-06-11 2001-05-08 Sony Corporation Method and apparatus for building a uniform resource locator menu in an Internet television system
US6698020B1 (en) 1998-06-15 2004-02-24 Webtv Networks, Inc. Techniques for intelligent video ad insertion
US6400407B1 (en) 1998-06-17 2002-06-04 Webtv Networks, Inc. Communicating logical addresses of resources in a data service channel of a video signal
US6424796B2 (en) * 1998-07-21 2002-07-23 Gateway, Inc. Optical storage media drive adapter for stand-alone use
US20070230921A1 (en) 2001-04-05 2007-10-04 Barton James M Multimedia time warping system
US8577205B2 (en) 1998-07-30 2013-11-05 Tivo Inc. Digital video recording system
US6233389B1 (en) 1998-07-30 2001-05-15 Tivo, Inc. Multimedia time warping system
US7558472B2 (en) 2000-08-22 2009-07-07 Tivo Inc. Multimedia signal processing system
KR100484209B1 (en) * 1998-09-24 2005-09-30 삼성전자주식회사 Digital content encryption / decryption apparatus and method
US6853385B1 (en) 1999-11-09 2005-02-08 Broadcom Corporation Video, audio and graphics decode, composite and display system
US6504990B1 (en) 1998-11-12 2003-01-07 Max Abecassis Randomly and continuously playing fragments of a video segment
WO2000033568A1 (en) 1998-11-30 2000-06-08 Diva Systems Corporation Method and apparatus for producing demand real-time television
JP2000214953A (en) * 1999-01-25 2000-08-04 Fujitsu Ltd Function extension device for electronic apparatus
US6332175B1 (en) * 1999-02-12 2001-12-18 Compaq Computer Corporation Low power system and method for playing compressed audio data
JP4406988B2 (en) * 1999-03-29 2010-02-03 ソニー株式会社 Nonvolatile recording medium, a recording method, a recording apparatus
JP2000295560A (en) 1999-04-08 2000-10-20 Matsushita Electric Ind Co Ltd Multiplex information recording and reproducing device and method for generating its index information
CA2338634C (en) * 1999-05-28 2007-06-26 Matsushita Electric Industrial Co., Ltd. A semiconductor memory card, playback apparatus, recording apparatus, playback method, recording method, and computer-readable recording medium
MXPA01012397A (en) 1999-06-02 2003-06-24 Thomson Licensing Sa Method and device for controlling a home network from an external communication network.
US20020056118A1 (en) * 1999-08-27 2002-05-09 Hunter Charles Eric Video and music distribution system
US6697944B1 (en) * 1999-10-01 2004-02-24 Microsoft Corporation Digital content distribution, transmission and protection system and method, and portable device for use therewith
JP3612455B2 (en) * 1999-10-07 2005-01-19 インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation Data recording and reproducing apparatus, a recording of the video data reproducing method and a disk drive unit
US6567127B1 (en) * 1999-10-08 2003-05-20 Ati International Srl Method and apparatus for enhanced video encoding
JP4325102B2 (en) * 1999-11-12 2009-09-02 ソニー株式会社 The information processing apparatus and method, and program storage medium
US6959384B1 (en) * 1999-12-14 2005-10-25 Intertrust Technologies Corporation Systems and methods for authenticating and protecting the integrity of data streams and other data
WO2001046880A1 (en) * 1999-12-21 2001-06-28 Sony Corporation Electronic money system
US6829254B1 (en) 1999-12-28 2004-12-07 Nokia Internet Communications, Inc. Method and apparatus for providing efficient application-level switching for multiplexed internet protocol media streams
US6748539B1 (en) * 2000-01-19 2004-06-08 International Business Machines Corporation System and method for securely checking in and checking out digitized content
JP2001297273A (en) * 2000-02-08 2001-10-26 Nec Corp Digital contents rental system
US6704493B1 (en) * 2000-03-06 2004-03-09 Sony Corporation Multiple source recording
US20040193900A1 (en) * 2000-03-17 2004-09-30 Mark Nair System, method and apparatus for controlling the dissemination of digital works
US6766956B1 (en) * 2000-06-08 2004-07-27 United Video Properties, Inc. System and method for using portable device with bar-code scanner
US6925246B1 (en) * 2000-07-05 2005-08-02 Steinbeck Cannery, Llc Television recorder having a removeable hard disk drive
US6454173B2 (en) * 2000-08-14 2002-09-24 Marcel A. Graves Smart card technology
JP2002064782A (en) * 2000-08-22 2002-02-28 Sharp Corp Video recording and reproducing method for tv program and device used therein
US7266704B2 (en) * 2000-12-18 2007-09-04 Digimarc Corporation User-friendly rights management systems and methods
US20020144265A1 (en) * 2001-03-29 2002-10-03 Connelly Jay H. System and method for merging streaming and stored content information in an electronic program guide
US7239800B2 (en) * 2001-05-02 2007-07-03 David H. Sitrick Portable player for personal video recorders
US6708251B1 (en) * 2001-05-31 2004-03-16 Keen Personal Media, Inc. Disk drive having separate interfaces for host commands and audiovisual data
US6820138B2 (en) * 2001-06-22 2004-11-16 Hewlett-Packard Development Company, L.P. Portable computer system including detachable handheld media storage and playback device
US6754254B2 (en) 2001-11-09 2004-06-22 Qualcomm Incorporated Control of transit power during out-of-lock condition
US7027460B2 (en) 2001-12-21 2006-04-11 Intel Corporation Method and system for customized television viewing using a peer-to-peer network
US7032177B2 (en) 2001-12-27 2006-04-18 Digeo, Inc. Method and system for distributing personalized editions of media programs using bookmarks
US7634171B2 (en) 2002-05-20 2009-12-15 Microsoft Corporation PC-based personal video recorder
US7934263B2 (en) 2002-12-17 2011-04-26 Sony Pictures Entertainment Inc. License management in a media network environment
US7290698B2 (en) 2004-08-25 2007-11-06 Sony Corporation Progress bar with multiple portions

Patent Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488179A (en) * 1980-09-27 1984-12-11 Robert Bosch Gmbh Television viewing center system
US5574662A (en) * 1992-09-21 1996-11-12 Tektronix, Inc. Disk-based digital video recorder
US5282247A (en) * 1992-11-12 1994-01-25 Maxtor Corporation Apparatus and method for providing data security in a computer system having removable memory
US5808702A (en) * 1993-09-22 1998-09-15 Sony Corporation Television system
US5990881A (en) * 1994-08-31 1999-11-23 Sony Corporation Near video-on-demand signal receiver
US5721933A (en) * 1994-12-22 1998-02-24 Texas Instruments Incorporated Power management supply interface circuitry, systems and methods
EP0784400A2 (en) * 1996-01-11 1997-07-16 International Business Machines Corporation Entertainment system for portable computer
US6018775A (en) * 1996-07-02 2000-01-25 Gateway 2000, Inc. System with a remote wireless mass storage which provides identification of a particular mass storage stored in a cradle to the system
US6535465B1 (en) * 1997-06-18 2003-03-18 Kabushiki Kaisha Optrom Integrated-disk drive having an intelligent electronic circuit mounted as part of the disk
US20010016884A1 (en) * 1997-07-24 2001-08-23 Masahiko Sato Data storage unit with cyclic error detection and avoidance
US6380978B1 (en) * 1997-10-06 2002-04-30 Dvdo, Inc. Digital video system and methods for providing same
US6072393A (en) * 1997-12-19 2000-06-06 Micro Snitch Corporation Anti-theft alarm for portable electrically operated devices
US6839851B1 (en) * 1998-07-28 2005-01-04 Hitachi, Ltd. Digital signal processing apparatus
US6311011B1 (en) * 1998-12-11 2001-10-30 Nec Corporation Device for recording video signals and device for displaying electronic program guide
US6480353B1 (en) * 1999-02-22 2002-11-12 Seagate Technology Llc Fixed disc drive cartridge and playback device
US6694200B1 (en) * 1999-04-13 2004-02-17 Digital5, Inc. Hard disk based portable device
US20010029583A1 (en) * 2000-02-17 2001-10-11 Dennis Palatov Video content distribution system including an interactive kiosk, a portable content storage device, and a set-top box
US20020003949A1 (en) * 2000-03-15 2002-01-10 Toshio Mamiya Hard disk drive
US20030174549A1 (en) * 2000-03-31 2003-09-18 Yoshitaka Yaguchi Recording format, recording device and reproducing device
US6442328B1 (en) * 2000-05-31 2002-08-27 Keen Personal Media, Inc. Digital video recorder connectable to an auxiliary interface of a set-top box that provides video data stream to a display device based on selection between recorded video signal received from the dig
US20020157002A1 (en) * 2001-04-18 2002-10-24 Messerges Thomas S. System and method for secure and convenient management of digital electronic content
US20020178368A1 (en) * 2001-05-24 2002-11-28 Peng Yin Semi-fragile watermarking system for MPEG video authentication

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100226627A1 (en) * 1998-07-30 2010-09-09 Barton James M Multimedia Stream Processing System
US20110126107A1 (en) * 1998-07-30 2011-05-26 Tivo Inc. Closed caption tagging system
US8824865B2 (en) 1998-07-30 2014-09-02 Tivo Inc. Digital video recorder system with an integrated DVD recording device
US8965173B2 (en) 1998-07-30 2015-02-24 Tivo Inc. Multimedia stream processing system
US10021446B2 (en) 1998-07-30 2018-07-10 Tivo Solutions Inc. Multimedia stream processing system
US9264686B2 (en) 1998-07-30 2016-02-16 Tivo Inc. Tag-based menus in video streams
US9407891B2 (en) 1998-07-30 2016-08-02 Tivo Inc. One-touch recording of a program being advertised
US9521356B2 (en) 1998-07-30 2016-12-13 Tivo Inc. Digital security surveillance system
US9788049B2 (en) 1998-07-30 2017-10-10 Tivo Solutions Inc. Multimedia signal processing system
US9800823B2 (en) 1998-07-30 2017-10-24 Tivo Solutions Inc. Digital security surveillance system
US9854199B2 (en) 1998-07-30 2017-12-26 Tivo Solutions Inc. Multiple outlet digital video recording system
US9258592B2 (en) 2004-11-19 2016-02-09 Tivo Inc. Method and apparatus for secure transfer of previously broadcasted content
US10153000B2 (en) 2006-06-22 2018-12-11 Tivo Solutions Inc. In-band data recognition and synchronization system
US9986295B2 (en) 2009-04-08 2018-05-29 Tivo Solutions Inc. Automatic contact information transmission system

Also Published As

Publication number Publication date
US20030026589A1 (en) 2003-02-06
US8380041B2 (en) 2013-02-19

Similar Documents

Publication Publication Date Title
AU2002341214B2 (en) Improvements in receivers for television signals
US5701383A (en) Video time-shifting apparatus
US7218635B2 (en) Apparatus and method for indexing MPEG video data to perform special mode playback in a digital video recorder and indexed signal associated therewith
EP1646049A2 (en) An in-home digital video unit with combined archival storage and high-access storage
US6708251B1 (en) Disk drive having separate interfaces for host commands and audiovisual data
US7170936B2 (en) Transcoding apparatus, system, and method
US7593620B2 (en) File and content management
CA2323539C (en) Method and apparatus implementing random access and time-based functions on a continuous stream of formatted digital data
US20030095790A1 (en) Methods and apparatus for generating navigation information on the fly
KR100547317B1 (en) Simultaneous recording and playback apparatus with indexing/searching/browsing functionality
US7177522B2 (en) System and method for personal video recording
US9986298B2 (en) Multimedia mobile personalization system
US8249166B2 (en) PVR-support video decoding system
CN100367786C (en) Display of closed captioned information during video trick modes
US20060020966A1 (en) Program guide with integrated progress bar
CN1248505C (en) Method and device for processing data stream containing transmission stream
CN101242515B (en) Multimedia program bookmarking system and method
CN1265386C (en) System for automatic playback position correction after fast forward or reverse
US6057832A (en) Method and apparatus for video-on-demand with fast play capability
US8516520B1 (en) Television viewer interface system
JP6103656B2 (en) System with closed-caption tag
CN100556112C (en) Data management method
CN100383890C (en) Multimedia program bookmarking system and method
US20040018000A1 (en) Navigating to a particular program or specific time increment in a personal video recorder
US9274690B2 (en) Multimedia visual progress indication system

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION