1
James L Geer, Ivan H Darius: Systems and methods for storing a plurality of video streams on re-writable random-access media and time-and channel- based retrieval thereof. Timesurf L L C, Slater & Matsil L, September 7, 2004: US06788882 (283 worldwide citation)

A digital video recorder (DVR) and a method of operating the same. In one embodiment, the DVR includes: (1) a mass data storage unit that concurrently and continuously receives and digitally stores a plurality of channels and (2) a channel viewer, coupled to the mass data storage unit, that retrieve ...


2
William B Boyle, William P Price: Communicating between a digital video recorder (DVR) and a set top box (STB) to coordinate the display of a graphical user interface. Keen Personal Media, Howard H Sheerin Esq, April 11, 2006: US07027716 (150 worldwide citation)

A digital video recorder (DVR) for use with a monitor and a set top box (STB) is disclosed. The STB demodulates program data from a program signal received over a communication channel and generates a STB graphical user interface (GUI). The DVR comprises a local memory for storing the program data r ...


3
William B Boyle, Alan P Rice: Digital video recorder employing a unique ID to interlock with encrypted video programs stored on a storage device. Keen Personal Technologies, Keen Personal Media, Milad G Shara Esq, Howard H Sheerin Esq, February 8, 2005: US06853731 (126 worldwide citation)

The present invention may be regarded as a digital video recorder (DVR) comprising a storage device for storing an encrypted video program, a unique ID for interlocking the encrypted video program with the digital video recorder, and a cryptography facility. The cryptography facility comprises an en ...


4
William B Boyle, William P Price, Timothy J Elliott: Communicating program identifiers from a digital video recorder (DVR) to a set top box (STB) independent of when the STB demodulates the associated program data. Keen Personal Media, Howard H Sheerin Esq, November 6, 2007: US07292775 (110 worldwide citation)

A digital video recorder (DVR) is disclosed for use with a monitor and a set top box (STB), the STB for demodulating program data from a program signal received over a communication channel and for generating a STB graphical user interface (GUI). The DVR comprises a local memory for storing the prog ...


5
William B Boyle, Alan P Rice: Digital video recorder employing a file system encrypted using a pseudo-random sequence generated from a unique ID. Keen Personal Technologies, Keen Personal Media, Milad G Shara Esq, Howard H Sheerin Esq, February 1, 2005: US06851063 (107 worldwide citation)

A digital video recorder (DVR) is disclosed comprising a unique ID, a hard disk drive (HDD) for storing a plurality of encrypted video programs and an encrypted file system, the encrypted file system comprising a plurality of encrypted file system entries for decrypting the plurality of video progra ...


6
William B Boyle, Alan P Rice: Digital video recorder for encrypting/decrypting video programs in segments to facilitate trick play features. Keen Personal Technologies, Keen Personal Media, Milad G Shara Esq, Howard H Sheerin Esq, February 1, 2005: US06851055 (106 worldwide citation)

A digital video recorder (DVR) is disclosed for storing a plaintext video program as an encrypted video program. The DVR comprises a random access storage (RAS) device for storing the encrypted video program in encrypted segments. The DVR further comprises a cryptography facility comprising an encod ...


7
William B Boyle, William P Price: Communicating a channel-change event from a set top box to a digital video recorder. Keen Personal Media, Jason T Evans Esq, Howard H Sheerin Esq, September 12, 2006: US07106947 (104 worldwide citation)

A digital video recorder (DVR) for use with a monitor and a set top box (STB) is disclosed. The STB demodulates program data by tuning to at least one of a plurality of channels and comprises a DVR interface. The DVR comprises a local memory for storing the program data received from the STB, and a ...


8
Michael J Kobb: Method and system for extending recording. Digital Networks North America, McDonnell Boehnen Hulbert & Berghoff, April 8, 2008: US07356246 (54 worldwide citation)

A digital video recorder (DVR) is user-configurable to start recording before a scheduled start of a program. The DVR displays an electronic program guide having a graphical indicator that the DVR is configured to start recording a program early. When a user commands the DVR to play back the recorde ...


9
Anthony F Istvan, Rod G Fleck, Robin Budd, Korina J B Stark, Marcellino Tanumihardja: Network-accessible control of one or more media devices. Vulcan, Perkins Coie, September 7, 2010: US07792920 (47 worldwide citation)

A content management (CM) system is provided to centrally control operation of one or more connected devices by issuing control requests and/or data requests. In some situations the connected device(s) include devices that control presentation of television programming-related content, such as digit ...


10
James L Geer, Ivan H Darius: Systems and methods for storing a plurality of video streams on re-writable random-access media and time- and channel-based retrieval thereof. Tm SF Media Holdings L L C, Perkins Coie, April 12, 2011: US07925141 (38 worldwide citation)

A digital video recorder (DVR) and a method of operating the same. In one embodiment, the DVR includes: (1) a mass data storage unit that concurrently and continuously receives and digitally stores a plurality of channels and (2) a channel viewer, coupled to the mass data storage unit, that retrieve ...



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