Patents by Inventor Sorin Cohn

Sorin Cohn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20040068433
    Abstract: A parking system for enabling centralized parking reservation, payment and enforcement, comprises a central computer communicating with user terminals and service terminals over a data network. The parking system maintains maps for all parking facilities administered by the respective owner and maintains information regarding the user of the respective vehicle; this information is particularly useful in security sensitive areas. A subscriber may access the system using a wireless or wireline web-enabled terminal, or with the help of an agent, to identify a convenient, un-reserved parking space, reserve that space (advance reservation is available) and pay a fee corresponding to the time the space was used. For subscriber's convenience, payment is cashless, and is tailored to the subscriber's needs; overtime parking protection is also available. The service terminals enable automation of most parking operations.
    Type: Application
    Filed: June 18, 2003
    Publication date: April 8, 2004
    Applicant: Eximsoft International
    Inventors: Amalendu Chatterjee, Dwijadas Raha, Joseph Fobert, Sorin Cohn-Sfetcu
  • Publication number: 20020065074
    Abstract: Data communication systems, methods, and devices for transmitting multimedia data content to wireless devices and, more particularly, methods, systems, and devices to deliver, store, and playback multimedia content on a handheld wireless device. The data communication system includes a content server and proxy server that store and mark multimedia data content as single-use or multi-use data. The marked data is transmitted to a wireless held device where the data is stored and provided with an indicator based on whether it is single-use or multiuse data, and then is routed to a media player for play back. After playback, the data is either deleted or stored, depending on the indicator attached thereto. The data may also be marked as restricted data and stored on a restricted access area. A block retransmission program is also provided to restore data transmission from the proxy server in the event transmission is prematurely lost.
    Type: Application
    Filed: October 23, 2001
    Publication date: May 30, 2002
    Inventors: Sorin Cohn, Marshall Brent Ross
  • Patent number: 6097968
    Abstract: Radio units responsive to a paging signal seize a trunk to connect wireless calls to telephone apparatus serviced by a private branch exchange. The radio units can each respond to a different set of mobile identification numbers, or can be configured in a master-slave arrangement or can employ subaddressing. Wireless trunking to a wireless private branch exchange can also be accomplished and a system with multiple hierarchical layers can also be formed.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: August 1, 2000
    Assignee: Nortel Networks Corporation
    Inventors: Cecil Bannister, Raju Iyer, Kishore Raj, Richard Mo, Paul S. Meche, Sorin Cohn
  • Patent number: 5787355
    Abstract: Radio units responsive to a paging signal seize a trunk to connect wireless calls to telephone apparatus serviced by a private branch exchange. The radio units can each respond to a different set of mobile identification numbers, or can be configured in a master-slave arrangement or can employ subaddressing. Wireless trunking to a wireless private branch exchange can also be accomplished and a system with multiple hierarchical layers can also be formed.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: July 28, 1998
    Assignee: Northern Telecom Limited
    Inventors: Cecil Bannister, Raju Iyer, Kishore Raj, Richard Mo, Paul S. Meche, Sorin Cohn
  • Patent number: 5497505
    Abstract: The call set-up technique of this invention is characterized by the use of channel information from both base station and subscriber terminal in determining the radio traffic channel upon which to set-up a new call. Communication between the base station and subscriber terminal is carried out on a signalling channel until the traffic channel is chosen. Calls are set-up so that they proceed on the radio channel which, of a set of channels under consideration by the subscriber terminal, contains the least amount of interference as measured at the subscriber terminal. The set of channels under consideration by the subscriber terminal is a subset of the entire set of channels allocated to the service. This subset is comprised of those channels having little interference, as measured by the base station, and which, additionally, are not reserved exclusively for stationary, fixed-allocation services in the geographic location of the base station.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: March 5, 1996
    Assignees: Northern Telecom Limited, Bell Canada International Inc.
    Inventors: Mahshad Koohgoli, Sorin Cohn-Sfetcu, John D. Lockton
  • Patent number: 5276908
    Abstract: The call set-up technique of this invention is characterized by the use of channel information from both base station and subscriber terminal in determining the radio traffic channel upon which to set-up a new call. Communication between the base station and subscriber terminal is carried out on a signalling channel until the traffic channel is chosen. Calls are set-up so that they proceed on the radio channel which, of a set of channels under consideration by the subscriber terminal, contains the least amount of interference as measured at the subscriber terminal. The set of channels under consideration by the subscriber terminal is a subset of the entire set of channels allocated to the service. This subset is made up of those channels having little interference, as measured by the base station, and which, additionally, are not reserved exclusively for stationary, fixed-allocation services in the geographic location of the base station.
    Type: Grant
    Filed: October 25, 1990
    Date of Patent: January 4, 1994
    Assignees: Northern Telecom Limited, BCE Telecom International, Inc.
    Inventors: Mahshad Koohgoli, Sorin Cohn-Sfetcu, John D. Lockton
  • Patent number: 4363100
    Abstract: A tone detector in the form of a digital correlator is disclosed in which PCM signal samples are delayed in a RAM for the correlation period. Using PROMs, the products of the current and delayed samples with samples of a sine signal at the frequency to be detected are produced, and their difference is cumulatively summed to produce a first accumulated signal. A second accumulated signal is similarly produced using samples of a cosine signal at the frequency to be detected, and an output signal indicating the presence or absence of the tone is produced from the sum of the squares of the two accumulated signals. The use of memories enables the detector to be readily multiplexed for detection of a plurality of tones on each of a plurality of channels.
    Type: Grant
    Filed: October 28, 1980
    Date of Patent: December 7, 1982
    Assignee: Northern Telecom Limited
    Inventors: David G. Agnew, Sorin Cohn-Sfetcu
  • Patent number: 4203008
    Abstract: A digital signalling receiver translates pulse code modulated (PCM) tone signalling into a signal format compatible with a controller in an associated time division multiplex (TDM) telephone switching facility. In the receiver, steering signals are generated in synchronism with the operation of the switching facility to direct the operation of a time shared filter. The filter performs a plurality of filter functions with a series of PCM signals received from the TDM switching facility and generates therefrom series of filter signals relative each of the filter functions.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: May 13, 1980
    Assignee: Northern Telecom Limited
    Inventors: Sorin Cohn-Sfetcu, Jackylene K. Hood, Daniel J. Doyle