1
Gutman Levitan: Virtual personal channel in a television system. Ilya Zborovsky, July 9, 1996: US05534911 (515 worldwide citation)

An apparatus for providing a customer of a television system with virtual personal channel which being selected delivers a television program of the most personal interest no matter on which channel and at what time the program is physically transmitted. Descriptive and time/channel data of schedule ...


2
Gutman Levitan: Integrated virtual telecommunication system for E-commerce. Virtel Corporation, Ilya Zborovsky, January 26, 1999: US05864823 (334 worldwide citation)

A system for distribution of advertisements to interested recipients only via one-way nonaddressable television media and for transmission of orders from recipients to advertisers via two-way addressable Internet media. A system for electronic delivery of newspapers, magazines, books, music, video a ...


3
Gutman Levitan: Internet access via one-way television channels. Virtel Corporation, I Zborovsky, February 24, 2004: US06698023 (57 worldwide citation)

A system using one-way TV channels to provide access to Internet content which, unlike e-mail, is not intended for a particular person but rather for an audience. An Internet server at a television transmission center downloads Web pages from Internet sites and retransmits them via a television netw ...


4
Gutman Levitan: Preservation and improvement of television advertising in digital environment. Ilya Zborovsky, May 18, 2010: US07720351 (45 worldwide citation)

A system for protecting commercials included in a digitally distributed and recorded video that minimizes user's inconveniences resulting from restrictions imposed on playback of the video. The video is encrypted at the distributor side and playback of the encrypted video at the user side is limited ...


5
Gutman Levitan: Error handling and audience measurement in datacast network with return channel. Ilya Zborovsky, April 8, 2008: US07356751 (12 worldwide citation)

A data broadcast network with a return channel providing a guaranteed error-free data delivery simultaneously to multiple receiving devices. The network transmits data in packets and uses the return channel for audience measurement and packets recovery. Whenever a corrupted packet is detected, the m ...


6
Gutman Levitan: Data broadcast network for congestion-free internet access. Ilya Zborovsky, August 15, 2006: US07092999 (9 worldwide citation)

The invention is an Internet access system that puts together interactivity of the Internet and congestion-free content delivery inherent in broadcast media in order to reduce delays in content presentation. The system delivers any web object (web page, music file, video etc.) in two steps. First, a ...


7
Gutman Levitan: System for pseudo-interactive internet access. Virtel Corporation, Ilya Zborovsky, November 15, 2005: US06965913 (7 worldwide citation)

The invention is an Internet access system reducing Internet traffic and delays in content presentation. It puts together interactivity of the Internet and congestion-free content delivery inherent in broadcast radio and television. An access server located at a broadcast center receives clients req ...


8
Gutman Levitan: System for estimating audience size in a digital broadcast environment using control packets and predictions. Ilya Zborovsky, February 1, 2011: US07882054 (7 worldwide citation)

For digital media, audience evaluation is performed as a result of transmitter-receiver interaction similar to a lottery game. The transmitter provides receivers with a preliminary audience estimate and a “winning” number, both placed in control packets multiplexed with a media stream. Each receiver ...


9
Gutman Levitan: Anonymous communicating over interconnected networks. Ilya Zborovsky, September 15, 2009: US07590245 (5 worldwide citation)

A method and system for concealing from an outside observer the source and destination of information transmitted over computer network. Two types of data packets are defined: content packets that are carrying application data, i.e. real information, and announcement packets that are carrying data p ...


10
Gutman Levitan: Communicating on wandering channels. Ilya Zborovsky, January 18, 1994: US05280497 (1 worldwide citation)

For protection of communication against interception by frequent pseudorandom changing of the distribution of transmissions on channels, an input distributive switch is installed before the channel division device of a transmitting system and a similar output switch is installed after the channel di ...



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