Himanshu R Parikh

US Patent:

20030106067, Jun 5, 2003

Filed:

Nov 30, 2001

Appl. No.:

09/998107

Inventors:

Steve Hoskins - Duluth GA, US
Samuel Russ - Alpharetta GA, US
Himanshu Parikh - Duluth GA, US
Ajith Nair - Lawrenceville GA, US

International Classification:

H04N007/173
H04N007/16

US Classification:

725/119000, 725/109000, 725/111000, 725/117000, 725/147000

Abstract:

The integration of gateway services such as, but not limited to, one or none of Network Address Translation (NAT), firewalls, proxies, tunneling, and/or Virtual Private Networking (VPN) into RF cable devices such as, but not limited to, cable modems and/or set-top boxes advantageously provides additional capabilities for accessing the internet over an RF cable connection.

US Patent:

52436519, Sep 7, 1993

Filed:

Jun 10, 1992

Appl. No.:

7/896628

Inventors:

Himanshu Parikh - Lawrenceville GA
Vibhu Rustagi - Duluth GA
Paul Borsetti - Duluth GA

Assignee:

Scientific-Atlanta, Inc. - Norcross GA

International Classification:

H04N 7167

US Classification:

380 20

Abstract:

A diagnostic method and apparatus for a cable television interdiction system is provided. One or more diagnostic modes each corresponding to a particular problem or state associated with the interdiction unit may be entered into by the interdiction unit. If a diagnostic mode is detected, the television signal provided to a television signal receiving apparatus, e. g. , a television set, is disabled for a specified length of time. Thereafter, depending upon the diagnostic mode detected, either the television signal provided to the receiving apparatus and/or a light-emitting device, e. g. , a light-emitting diode (LED), is pulsed a specified number of times corresponding to the detected diagnostic mode. The cycle of disabling the television signal provided to the receiving apparatus and pulsing either or both the television signal provided to the receiving apparatus and/or the LED is repeated until a transaction is received from the headend cancelling the diagnostic mode. Thus, the pulsing of the television signal provided to the receiving apparatus alerts the user of the receiving apparatus that a problem has occurred to the interdiction unit, and this information may be provided by the user to the cable television operator.

US Patent:

56045280, Feb 18, 1997

Filed:

May 9, 1994

Appl. No.:

8/239980

Inventors:

Robert J. Edwards - Lawrenceville GA
Gregory S. Durden - Jonesboro GA
Himanshu R. Parikh - Lawrenceville GA
Paul Borsetti - Duluth GA
Vibha Rustagi - Duluth GA

Assignee:

Scientific-Atlanta, Inc. - Atlanta GA

International Classification:

H04N 7167

US Classification:

348 55

Abstract:

A method and apparatus for providing periodic subscription television services comprises a way for subscribers who cannot afford the fees for full time television services such as a regular cable television service to obtain subscription service to a plurality of allocated channels on a periodic basis. The method comprises the steps of allocating channels to a periodic service offering and storing in memory of service denial apparatus service code data which represents the allocated channels. The service denial apparatus for providing periodic service comprises a service denial device such as a switch 389 or other circuit controlled by a controller 260 of service denial apparatus for periodically closing and opening service lines to the periodic service subscriber in accordance with predetermined periodic service intervals. For example, one periodic subscription television service offering may be a weekend service whereby the periodic service subscriber is connected to receive a predetermined plurality of channels from 6 PM on a Friday evening through 12 PM on a Sunday evening.

US Patent:

55059015, Apr 9, 1996

Filed:

Mar 25, 1994

Appl. No.:

8/218037

Inventors:

Michael P. Harney - Atlanta GA
Himanshu R. Parikh - Lawrenceville GA
Lamar E. West - Maysville GA
James O. Farmer - Lilburn GA
Mark E. Schutte - Sugar Hill GA

Assignee:

Scientific-Atlanta, Inc. - Norcross GA

International Classification:

H04N 710

US Classification:

348 10

Abstract:

Off-premises cable television pay per view apparatus is coupled between first and second diplexers of off-premises subscriber service providing equipment. The diplexers separate the transmission path between a headend and a subscriber into downstream or forward and upstream or reverse transmission paths. A radio frequency transmitter is coupled between a controller and the upstream diplexer which may actuate a selected one of a plurality of data channels in the notoriously noisy subsplit 5-30 megahertz transmission spectrum for reporting billable events. On-premises equipment is minimized to comprise only a unidirectional data transmitter. The data transmission is sent repetitively over a predetermined period of time before the data transmitter, comprising a microprocessor, turns itself off to conserve power. Thus, data transmitted from the subscriber in a first format is received at off-premises equipment, service is authorized there if appropriate, and then data is transmitted over a data channel selected so as to avoid noisy portions of the spectrum in a second format to a headend.

US Patent:

52436470, Sep 7, 1993

Filed:

Jun 10, 1992

Appl. No.:

7/896447

Inventors:

Himanshu Parikh - Lawrenceville GA
Paul Borsetti - Duluth GA
Vibha Rustagi - Duluth GA
Mark E. Schutte - Sugar Hill GA

Assignee:

Scientific-Atlanta, Inc. - Norcross GA

International Classification:

H04N 7167

US Classification:

380 4

Abstract:

Apparatus for broadband signal distribution is equipped with a detector for detecting when the apparatus is open and is further adapted to receive an entry code generator. If the entry code generator is not installed or, if installed, fails to generate an entry code which matches an authorized entry code stored in the apparatus, the apparatus enters a particular mode of operation whereby service provided by the apparatus is interfered with. The entry code generator comprises a circuit board for coupling with an electrical connector of the apparatus having at least one ear which precludes closure of a cover to the apparatus. A method of screening access to the apparatus from others than authorized service personnel includes waiting a predetermined period of time for coupling the access code generator before service is interfered with. Furthermore, the stored access code may be changed or the predetermined time varied by addressable command from a headend of a broadband signal distribution system.

US Patent:

52789080, Jan 11, 1994

Filed:

Jun 10, 1992

Appl. No.:

7/896292

Inventors:

Himanshu R. Parikh - Lawrenceville GA
Michael P. Harney - Atlanta GA
Paul Borsetti - Duluth GA
Vibha Rustagi - Duluth GA
Mark E. Schutte - Sugar Hill GA

Assignee:

Scientific-Atlanta, Inc. - Norcross GA

International Classification:

H04N 7167

US Classification:

380 7

Abstract:

An off-premises method and apparatus for the interdiction of unauthorized channels of a broadband cable television signal includes common circuitry for adjusting the amplitude and equalization levels of the broadband CATV signals and one or more subscriber modules for generating jamming signals of different frequencies which are used to interdict one or more unauthorized channels. Each subscriber module is associated with a subscriber and is programmable and addressable to adjust the jamming parameters of that subscriber independently of other subscribers. Each subscriber module circuit comprises a plurality of latches, each of which is associated with one of a plurality of digital to analog converters. Each of the digital to analog converters drives one or more frequency agile oscillators with its analog output to generate the jamming signals. The subscriber module is based on a sequential state machine which loads frequency control words corresponding to the jammed channels from a frequency control memory into each latch on a cyclic basis.

US Patent:

52651606, Nov 23, 1993

Filed:

Jun 10, 1992

Appl. No.:

7/896708

Inventors:

Michael P. Harney - Atlanta GA
Vibha Rustagi - Duluth GA
Himanshu R. Parikh - Lawrenceville GA
Mark E. Schutte - Sugar Hill GA

Assignee:

Scientific-Atlanta, Inc. - Norcross GA

International Classification:

H04N 7167

US Classification:

380 7

Abstract:

An off-premises method and apparatus for the interdiction of unauthorized channels of a broadband cable television signal includes common circuitry for adjusting the amplitude and equalization levels of the broadband CATV signals and one or more subscriber modules for generating jamming signals of different frequencies which are used to interdict one or more unauthorized channels. Each subscriber module is associated with a subscriber and is programmable and addressable to adjust the jamming parameters of that subscriber independently of other subscribers. Each subscriber module circuit comprises a plurality of latches, each of which is associated with one of a plurality of digital to analog converters. Each of the digital to analog converters drives one or more frequency agile oscillators with its analog output to generate the jamming signals. The subscriber module is based on a sequential state machine which loads frequency control words corresponding to the jammed channels from a frequency control memory into each latch on a cyclic basis.

US Patent:

53113250, May 10, 1994

Filed:

Jun 10, 1992

Appl. No.:

7/896582

Inventors:

Robert J. Edwards - Lawrenceville GA
Gregory S. Durden - Jonesboro GA
Himanshu Parikh - Lawrenceville GA
Paul Borsetti - Duluth GA
Vibha Rustagi - Duluth GA

Assignee:

Scientific Atlanta, Inc. - Atlanta GA

International Classification:

H04N 7167

US Classification:

348 55

Abstract:

A method and apparatus for providing periodic subscription television services comprises a way for subscribers who cannot afford the fees for full time television services such as a regular cable television service to obtain subscription service to a plurality of allocated channels on a periodic basis. The method comprises the steps of allocating channels to a periodic service offering and storing in memory of service denial apparatus service code data which represents the allocated channels. The service denial apparatus for providing periodic service comprises a service denial device such as a switch 389 or other circuit controlled by a controller 260 of service denial apparatus for periodically closing and opening service lines to the periodic service subscriber in accordance with predetermined periodic service intervals. For example, one periodic subscription television service offering may be a weekend service whereby the periodic service subscriber is connected to receive a predetermined plurality of channels from 6 PM on a Friday evening through 12 PM on a Sunday evening.