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56-399: The MediaMVP can stream audio and video content from a host PC running Windows. It can display photos stored on the host PC. It can stream Internet radio via the host PC as well. It can display live TV with full PVR features with SageTV PVR software for Windows or Linux. The capabilities listed below refer to the official software and firmware supplied by Hauppauge. The MediaMVP supports

112-669: A SageTV Studio Development GUI that allows the customization of the user interface and development of add-ons. The company provides documentation so that these customizations can use a Java API. Built-in EPG support is available only for North America; however, the developer community has developed plug-ins that allow unsupported regions to access EPG info through sources such as XMLTV and ICETV in Australia. Additionally, there are IMDb and commercial skipping plugins. Digital video recorder A digital video recorder ( DVR ), also referred to as

168-576: A personal video recorder ( PVR ) particularly in Canada and British English, is an electronic device that records video in a digital format to a disk drive , USB flash drive , SD memory card , SSD or other local or networked mass storage device. The term includes set-top boxes (STB) with direct to disk recording , portable media players and TV gateways with recording capability, and digital camcorders . Personal computers are often connected to video capture devices and used as DVRs; in such cases

224-720: A FireWire port to record the MPEG2 transport stream from a FireWire-equipped cable box (for example: Motorola DCT62xx, including HD streams). Applications can also change channels on the cable box via the firewire interface. Only broadcast channels can be recorded as the rest of the channels are encrypted. FireRecord (formerly iRecord) is a free scheduled-recording program derived from this SDK. There are several free digital video recording applications available for Microsoft Windows including GB-PVR , MediaPortal , and Orb (web-based remote interface). There are also several commercial applications available including CyberLink , SageTV (which

280-458: A built-in conversion feature to transcode files into other formats compatible with iPod, PSP, cell phones and other portable devices. A "lite" version is commonly shipped as part of an OEM software bundle. Both the lite and regular versions offer a Java API . SageTV Placeshifter allows the user to watch TV from any high speed internet connection, similar to the Slingbox . As of Version 6,

336-425: A camcorder. Some editing of the resulting DVD is usually possible, such as adding chapter points. Some digital video recorders can now record to solid state flash memory cards (called flash camcorders ). They generally use Secure Digital cards, can include wireless connections ( Bluetooth and Wi-Fi ), and can play SWF files. There are some digital video recorders that combine video and graphics in real time to

392-550: A constant sampling rate. In many devices, the resulting digital video and audio are compressed before recording to reduce the amount of data that will be recorded, although some DVRs record uncompressed data. When compression is used, video is typically compressed using formats such as H.264 or MPEG-2, and audio is compressed using AAC or MP3. Many consumer DVRs implement a copy-protection system called Copy Generation Management System—Analog ( CGMS-A ), which specifies one of four possible copy permissions by means of two bits encoded in

448-491: A digital video recorder can be more complex than recording analog signals or broadcast digital signals. There are several different transmission schemes, and the video streams may be encrypted to restrict access to subscribers only. A satellite or cable set-top box both decrypts the signal if encrypted, and decodes the MPEG stream into an analog signal for viewing on the television. In order to record cable or satellite digital signals

504-466: A multitude of advanced functions over VCR technology including video searches by event, time, date and camera. There is also much more control over quality and frame rate allowing disk space usage to be optimized and the DVR can also be set to overwrite the oldest security footage should the disk become full. In some DVR security systems remote access to security footage using a PC can also be achieved by connecting

560-565: A recording before it has been completed) and skipping over advertising during playback. Many DVRs use the MPEG format for compressing the digital video. Video recording capabilities have become an essential part of the modern set-top box , as TV viewers have wanted to take control of their viewing experiences. As consumers have been able to converge increasing amounts of video content on their set-tops, delivered by traditional ' broadcast ' cable , satellite and terrestrial as well as IP networks,

616-565: A series of digital video recording devices called EyeTV. The software supplied with each device is also called EyeTV, and is available separately for use on compatible third-party tuners from manufacturers such as Pinnacle, TerraTec, and Hauppauge. SageTV provided DVR software for the Mac but no longer sells it. Previously sold devices support the Hauppauge HVR-950, myTV.PVR and HDHomeRun hardware with its DVR software. SageTV software also included

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672-506: A single RF channel, some PVRs can record two channels and view a third, so long as all three subchannels are on two channels (or one). In the United States, DVRs were used by 32 percent of all TV households in 2009, and 38 percent by 2010, with viewership among 18- to 40-year-olds 40 percent higher in homes that have them. DVRs are integrated into some television sets (TVs). These systems simplify wiring and operation because they employ

728-549: A single power cable, have no interconnected ports (e.g., HDMI ), and share a common remote control . VESA -compatible DVRs are designed to attach to the VESA mounting holes (100×100 mm) on the back of an LCD television set (TV), allowing users to combine the TV and DVR into an integrated unit. Over-the-air DVRs are standalone receivers that record broadcast television programs. Several companies have launched over-the-air DVR products for

784-526: A subset of this information (that can later be transferred to DVD ). An ATSC DVR will also act as a set-top box , allowing older televisions or monitors to receive digital television. The U.S. FCC attempted to limit the abilities of DVRs with its " broadcast flag " regulation. Digital video recorders that had not won prior approval from the FCC for implementing "effective" digital rights management would have been banned from interstate commerce from July 2005, but

840-404: A television signal, a television tuner must first demodulate the radio frequency signal to produce baseband video. The video is then converted to digital form by a frame grabber , which converts each video image into a collection of numeric values that represent the pixels within the image. At the same time, the audio is also converted to digital form by an analog-to-digital converter running at

896-544: Is a DVR software by Microsoft which was bundled with the Media Center edition of Windows XP , the Home Premium / Ultimate editions of Windows Vista , as well as most editions of Windows 7 . When Windows 8 was released in 2012, Windows Media Center was not included with Windows 8 OEM or Retail installations, and was only available as a $ 15 add-on pack (including DVD Playback codecs) to Windows 8 Pro users. An embeddable DVR

952-467: Is a popular option for home-theater PC (HTPC) enthusiasts. There are many free and open source software DVR applications available for Linux . For example, TV gateway interfaces to DVB tuners and provides network tuner and TV server functions, which allows live viewing and recording over IP networks. Other examples include MythTV , Video Disk Recorder (VDR), LinuxMCE , TiVo , VBox Home TV Gateway , and Kodi (formerly XBMC). Geniatech makes

1008-520: Is a standalone device that is designed to be easily integrated into more complex systems. It is typically supplied as a compact, bare circuit board that facilitates mounting it as a subsystem component within larger equipment. The control keypad is usually connected with a detachable cable, to allow it to be located on the system's exterior while the DVR circuitry resides inside the equipment. Television and video are terms that are sometimes used interchangeably, but differ in their technical meaning. Video

1064-399: Is generally a straightforward capture of the binary MPEG data being received. No expensive hardware is required to quantize and compress the signal (as the television broadcaster has already done this in the studio). DVD-based PVRs available on the market as of 2006 are not capable of capturing the full range of the visual signal available with high-definition television (HDTV). This

1120-481: Is largely because HDTV standards were finalized at a later time than the standards for DVDs. However, DVD-based PVRs can still be used (albeit at reduced visual quality) with HDTV since currently available HDTV sets also have standard A/V connections. ATSC television broadcasting is primarily used in North America. The ATSC data stream can be directly recorded by a digital video recorder, though many DVRs record only

1176-521: Is no longer available after Google acquired it in June 2011), Beyond TV (which is considered discontinued despite an official announcement from SnapStream since the last update was October 2010 and they are concentrating on their enterprise search products), DVBViewer , Showshifter , InterVideo WinDVR , the R5000-HD and Meedio (now a dead product – Yahoo! bought most of the company's technology and discontinued

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1232-478: Is supported as well. Supports streaming Internet radio stations via the host PC. Can schedule recording of television broadcasts when using a Hauppauge WinTV TV tuner card with the Hauppauge WinTV recording software. The MediaMVP hardware consists of a small set-top box and an infrared remote control . It can be oriented either horizontally or vertically (using a supplied base). It's normally operated via

1288-451: Is the visual portion of television, whereas television is the combination of video and audio modulated onto a carrier frequency (i.e., a television channel) for delivery. Most DVRs can record both video and audio. The first digital video recorders were designed to record analog television in NTSC , PAL or SECAM formats. To record an analog signal a few steps are required. In the case of

1344-435: Is usually in 720p/1080i. Digital video recorders configured for physical security applications record video signals from closed-circuit television cameras for detection and documentation purposes. Many are designed to record audio as well. DVRs have evolved into devices that are feature rich and provide services that exceed the simple recording of video images that was previously done through VCRs. A DVR CCTV system provides

1400-466: The MPEG (MPEG-1 and MPEG-2) video format (and only that format). However, depending on the MediaMVP host software running on the host computer, the host software may be able to seamlessly transcode other video file formats before sending them to the MediaMVP in the MPEG format. The maximum un-transcoded playable video size is SDTV (480i). HDTV mpeg streams (e.g. 720p) need to be transcoded in real-time on

1456-604: The SageTV Placeshifter is available for Windows, Linux and Macintosh platforms. The SageTV Media Extender set-top allows other TVs to connect to SageTV over a home network. There is also the ability to use the Hauppauge MediaMVP with SageTV by purchasing a MediaMVP Client License . On June 18, 2011, Jeffrey Kardatzke, CTO and founder of the company, announced in a SageTV forum post that his company had been acquired by Google . An official press release followed later

1512-1171: The Sky Q box. TiVo launched a UK model in 2000, and is no longer supported, except for third party services, and the continuation of TiVo through Virgin Media in 2010. South African based Africa Satellite TV beamer Multichoice recently launched their DVR which is available on their DStv platform. In addition to ReplayTV and TiVo, there are a number of other suppliers of digital terrestrial ( DTT ) DVRs, including Technicolor SA , Topfield , Fusion, Commscope , Humax , VBox Communications, AC Ryan Playon and Advanced Digital Broadcast (ADB). Many satellite, cable and IPTV companies are incorporating digital video recording functions into their set-top box , such as with DirecTiVo , DISHPlayer/DishDVR, Scientific Atlanta Explorer 8xxx from Time Warner, Total Home DVR from AT&T U-verse , Motorola DCT6412 from Comcast and others, Moxi Media Center by Digeo (available through Charter, Adelphia, Sunflower, Bend Broadband, and soon Comcast and other cable companies), or Sky+. Astro introduced their DVR system, called Astro MAX , which

1568-494: The application software used to record video is an integral part of the DVR. Many DVRs are classified as consumer electronic devices. Similar small devices with built-in (~5 inch diagonal) displays and SSD support may be used for professional film or video production, as these recorders often do not have the limitations that built-in recorders in cameras have, offering wider codec support, the removal of recording time limitations and higher bitrates. The first working DVR prototype

1624-523: The vertical blanking interval : CGMS-A information may be present in analog broadcast TV signals, and is preserved when the signal is recorded and played back by analog VCRs . VCRs do not understand the meanings of the bits but preserve them in case there is a subsequent attempt to copy the tape to a DVR. DVRs such as TiVo also detect and act upon analog protection systems such as Macrovision and DCS Copy Protection which were originally designed to block copying on analog VCRs. Recording digital signals

1680-404: The "Best of Show" award in the video category with Netscape co-founder Marc Andreessen as an early investor and board member, but TiVo was more successful commercially. Ad Age cited Forrester Research as saying that market penetration by the end of 1999 was "less than 100,000". Legal action by media companies forced ReplayTV to remove many features such as automatic commercial skip and

1736-403: The "wMVP", has Wireless G connectivity. however, this connection method can be inadequate for viewing digital television recordings depending on signal strength and reliability. A modified version of the unit is rebranded as Helius Media Stream and is fitted with a standard channel 3/4 RF modulator. This box is a better choice for TVs that lack separate RCA audio/video inputs. The MediaMVP uses

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1792-508: The Australian market allowing free-to-air television to be recorded on a removable hard drive. Some dual-tuner DVRs also have the ability to output to two separate television sets at the same time. The PVR manufactured by UEC ( Durban , South Africa) and used by Multichoice and Scientific Atlanta 8300DVB PVR have the ability to view two programs while recording a third using a triple tuner. Where several digital subchannels are transmitted on

1848-700: The IBM STB02500, a PowerPC 405 CPU integrated with functionality especially suited for use in set-top boxes , like MPEG2 decoder. The unit has 16 MB of SDRAM . It runs on Linux -based firmware. Hauppauge has delivered enhancements and new functionality to the MediaMVP from time to time by releasing updated firmware. Firmware updates are delivered to the device when it is powered up. See list of Internet radio stations . Can play MMS streams, e.g. mms://some.radio.station/path/to/stream/ Can play HTTP streams, e.g. http://some.radio.station/path/to/stream/ SageTV SageTV Media Center , now open source,

1904-502: The MediaMVP unit has a plug for 6 VDC power, an Ethernet port, and in the US edition, S-Video out, composite video out, and stereo audio out, while the European edition has instead a single " SCART out" connector, offering additional RGB output possibilities, and bundles a SCART lead with 2 extra stereo audio cables with female RCA connectors coming out of one of the plugs. Model 1016,

1960-604: The Meedio line, and rebranded the software Yahoo! Go – TV, which is now a free product but only works in the U.S. ). Most TV tuner cards come bundled with software which allows the PC to record television to hard disk. See TV tuner card . For example, Leadtek 's WinFast DTV1000 digital TV card comes bundled with the WinFast PVR2 software, which can also record analog video from the card's composite video input socket. Windows Media Center

2016-459: The UK, BSkyB introduced their first PVR Sky+ with dual tuner support in 2001. These machines have two independent tuners within the same receiver. The main use for this feature is the capability to record a live program while watching another live program simultaneously or to record two programs at the same time, possibly while watching a previously recorded one. Kogan.com introduced a dual-tuner PVR in

2072-483: The UK, digital video recorders are often referred to as "plus boxes" (such as BSKYB's Sky+ and Virgin Media's V+ which integrates an HD capability, and the subscription free Freesat+ and Freeview+ ). Freeview+ have been around in the UK since the late 2000s, although the platform's first DVR, the Pace Twin, dates to 2002. British Sky Broadcasting marketed a popular combined receiver and DVR as Sky+, now replaced by

2128-523: The ability to capture programming and view it whenever they want has become a must-have function for many consumers. At the 1999 CES, Dish Network demonstrated the hardware that would later have DVR capability with the assistance of Microsoft software, which also included access to the WebTV service. By the end of 1999 the Dishplayer had full DVR capabilities and within a year, over 200,000 units were sold. In

2184-447: The ability to use interactive TV on recorded shows, pre-loading of programs, or directly recording encrypted digital streams. It can, however, also force the manufacturer to implement non-skippable advertisements and automatically expiring recordings. In the United States, the FCC has ruled that starting on July 1, 2007, consumers will be able to purchase a set-top box from a third-party company, rather than being forced to purchase or rent

2240-535: The ability to watch YouTube and other online video with a remote control. MythTV (see above) also runs under Mac OS X , but most recording devices are currently only supported under Linux. Precompiled binaries are available for the MythTV front-end, allowing a Mac to watch video from (and control) a MythTV server running under Linux. Apple provides applications in the FireWire software developer kit which allow any Mac with

2296-506: The capability to copy content from a source DVD ( ripping ). In the United States, this is prohibited under the Digital Millennium Copyright Act if the disc is encrypted. Most such DVRs will therefore not allow recording of video streams from encrypted movie discs. A digital camcorder combines a camera and a digital video recorder. Some DVD-based DVRs incorporate connectors that can be used to capture digital video from

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2352-546: The computer to SD format. Note: transcoding video can tax some slower computers. With a hardware MPEG decoder as part of its PowerPC processor, it renders moving video images more smoothly than many software PVR implementations. Supported audio file formats include MP3 and WMA . Playlist formats supported include M3U , PLS , ASX and B4S . See also Internet radio below. Supported image file formats include JPG and GIF . Slideshows are supported. Listening to music (including streaming Internet radio) during slideshows

2408-410: The consumer market over the past few years. Some pay-TV operators provide receivers that allow subscribers to attach their own network-attached storage (NAS) hard drives or solid-state or flash memory to record video and other media files (e.g., audio and photos). Software and hardware are available which can turn personal computers running Microsoft Windows , Linux , and Mac OS X into DVRs, and

2464-769: The flash card, called DTE or "direct to edit". These are used to speed-up the editing workflow in video and television production, since linear videotapes do not then need to be transferred to the edit workstation (see Non-linear editing system ). DVRs can usually record and play H.264 , MPEG-4 Part 2 , MPEG-2 .mpg , MPEG-2 . TS , VOB and ISO images video, with MP3 and AC3 audio tracks. They can also display images ( JPEG and PNG ) and play music files ( MP3 and Ogg ). Some devices can be updated to play and record in new formats. DVRs usually record in proprietary file systems for copy protection , although some can use FAT file systems. Recordings from standard-definition television usually have 480p/i/576p/i while HDTV

2520-420: The open market. In Europe Free-To-Air and Pay TV TV gateways with multiple tuners have whole house recording capabilities allowing recording of TV programs to Network Attached Storage or attached USB storage, recorded programs are then shared across the home network to tablet , smartphone , PC, Mac, Smart TV. In 2003 many Satellite and Cable providers introduced dual-tuner digital video recorders. In

2576-561: The prototype was demoed to industrial partners including Sony, Intel, and Apple. Consumer digital video recorders ReplayTV and TiVo were launched at the 1999 Consumer Electronics Show in Las Vegas, Nevada . Microsoft also demonstrated a unit with DVR capability, but this did not become available until the end of 1999 for full DVR features in Dish Network's DISHplayer receivers. TiVo shipped their first units on March 31, 1999. ReplayTV won

2632-508: The regulation was struck down on May 6, 2005. DVB digital television contains audio/visual signals that are broadcast over the air in a digital rather than analog format . The DVB data stream can be directly recorded by the DVR. Devices that can use external storage devices (such as hard disks , SSDs , or other flash storage ) to store and recover data without the aid of another device are sometimes called telememory devices. Recording satellite television or digital cable signals on

2688-500: The same day, and since then the SageTV products have no longer been available for purchase. On March 9, 2015, Jeffrey Kardatzke announced that SageTV would be open-sourced "in the near future (i.e. months, not years)". Then a few months later, SageTV became open source, hosted on GitHub. After the acquisition of SageTV, LLC by Google, they began modifying and updating it to work with Google's upcoming Google Fiber TV service. SageTV v8

2744-404: The set-top box from their cable company. This ruling only applies to "navigation devices", otherwise known as a cable television set-top box, and not to the security functions that control the user's access to the content of the cable operator. The overall net effect on digital video recorders and related technology is unlikely to be substantial as standalone DVRs are currently readily available on

2800-514: The sharing of recordings over the Internet, but newer devices have steadily regained these functions while adding complementary abilities, such as recording onto DVDs and programming and remote control facilities using PDAs, networked PCs, and Web browsers. In contrast to VCRs , hard-disk based digital video recorders make " time shifting " more convenient and also allow for functions such as pausing live TV, instant replay, chasing playback (viewing

2856-410: The signal must be captured after it has been decrypted but before it is decoded; this is how DVRs built into set-top boxes work. Cable and satellite providers often offer their own digital video recorders along with a service plan. These DVRs have access to the encrypted video stream, and generally enforce the provider's restrictions on copying of material even after recording. Many DVD-based DVRs have

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2912-433: The supplied remote control. Behind the unit's red translucent front panel is a single red LED . The LED is used as a power indicator, and also flashes when the unit's remote control is used. Typical (wired) units consume less than 5W. The power supply for the original MediaMVP consists of 6VDC, 1.66A Coaxial DC Power Connector . The outer sleeve is the negative terminal and the inner tip is the positive terminal. The rear of

2968-558: Was a proprietary , commercial DVR (Digital Video Recording) and HTPC (Home theater PC) software for Mac OS X , Windows and Linux . It requires that the host computer have a hardware-based TV tuner card . The SageTV software has an integrated Electronic Programming Guide (EPG) that is updated via the Internet. The program provides a television interface for DVR, music, and photos on Windows and Linux. SageTV Media Center typically records in standard MPEG2, making it possible to transfer recordings to laptops or other devices. It also has

3024-478: Was developed in 1998 at Stanford University Computer Science department. The DVR design was a chapter of Edward Y. Chang 's PhD dissertation, supervised by Professors Hector Garcia-Molina and Jennifer Widom . Two design papers were published at the 1998 VLDB conference, and the 1999 ICDE conference. The prototype was developed in 1998 at Pat Hanrahan 's CS488 class: Experiments in Digital Television, and

3080-469: Was the first PVR in Malaysia but was phased out two years after its introduction. In the case of digital television, there is no encoding necessary in the DVR since the signal is already a digitally encoded MPEG stream. The digital video recorder simply stores the digital stream directly to disk. Having the broadcaster involved with, and sometimes subsidizing, the design of the DVR can lead to features such as

3136-565: Was the initial platform used for the Google Fiber Storage Box (DVR) and TV Box (Client). It has since been replaced with an in-house developed software. SageTV Media Center for Linux is compatible with most major Linux distributions. Information on a Gentoo distribution tuned for Media Center usage is available from the SageTV website. It runs on low cost PC and consumer electronics hardware including embedded processors (embedded only available for OEMs). SageTV software also includes

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