Patents by Inventor Michael Allen Raffel

Michael Allen Raffel 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).

  • Patent number: 6584175
    Abstract: A method and apparatus for remote spectrum analysis is disclosed. A channel measurement device is configured to receive and measure the radio spectrum in a geographic location during a measurement phase of operation. A microprocessor processes the signals and stores processed data on a storage device. The channel measurement device contains a communications interface to a land line telephone network and/or a cellular telephone network. During a data transfer phase of operation, the channel measurement device sends the processed data to a remote processor via the land line or cellular telephone network. In addition, the remote processor may act as a remote user interface to control the operation of the channel measurement device. In particular, the remote processor may be used to store values for user programmable configuration parameters in a memory of the channel measurement device via the land line or cellular telephone network.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: June 24, 2003
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Masud Kibria, Michael Allen Raffel
  • Publication number: 20020137466
    Abstract: A communication device locates a wireless service provider in a multi-service provider environment using a frequency band search schedule. The frequency band search schedule has a first or home band and a several other frequency bands in a predetermined order. The order of the frequency bands may be programmed by the user or by a home service provider over the air. The communication device searches for an acceptable service provider by examining the home band and then the other bands listed in the frequency band search schedule. The bands are examined in the order specified by the frequency band search schedule. An acceptable service provider is identified by comparing the identity of a service provider specified by an identifier received from a band being examined with a list of acceptable service providers.
    Type: Application
    Filed: May 28, 2002
    Publication date: September 26, 2002
    Applicant: AT&T WIRELESS SERVICES, INC.
    Inventors: Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
  • Patent number: 6430396
    Abstract: A communication device locates a wireless service provider in a multi-service provider environment using a frequency band search schedule. The frequency band search schedule has a first or home band and a several other frequency bands in a predetermined order. The order of the frequency bands may be programmed by the user or by a home service provider over the air. The communication device searches for an acceptable service provider by examining the home band and then the other bands listed in the frequency band search schedule. The bands are examined in the order specified by the frequency band search schedule. An acceptable service provider is identified by comparing the identity of a service provider specified by an identifier received from a band being examined with a list of acceptable service providers.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: August 6, 2002
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
  • Publication number: 20020102955
    Abstract: A communication device locates a preferable wireless service provider in a multi-service provider environment using a frequency band search schedule. Initially, the communications device registers with a less preferred service provider in a first frequency band. While remaining registered with the less preferred service provider, the device examines several frequency bands in the order specified by the frequency band search schedule. A frequency band is examined by dividing the frequency band into many sub-bands, and by locating the strongest signal above a threshold within the sub-band being examined. The examination continues until a second frequency band having a more preferred service provider is located. The communication device then registers with the more preferred service provider. The category of service provider may be identified and displayed on the communication device.
    Type: Application
    Filed: March 19, 2002
    Publication date: August 1, 2002
    Applicant: AT&T WIRELESS SERVICES, INC.
    Inventors: Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
  • Publication number: 20020098848
    Abstract: A communication device locates a preferable wireless service provider in a multi-service provider environment using a frequency or frequency band search schedule. Initially, the communication device registers with a less preferred service provider in a first frequency. While remaining registered with the less preferred service provider, the device examines several frequencies in the order specified by the frequency search schedule. The device determines whether the last frequency used by the communication device has a more preferred service provider. If the last frequency used does not have a more preferred service provider, the device examines each of the plurality of frequencies in the predetermined order in the search schedule. The examination continues until another frequency band having a more preferred service provider is located. The communication device then registers with the more preferred service provider.
    Type: Application
    Filed: March 19, 2002
    Publication date: July 25, 2002
    Applicant: AT&T WIRELESS SERVICES, INC.
    Inventors: Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
  • Patent number: 6418318
    Abstract: A communication device locates a preferable wireless service provider in a multi-service provider environment using a frequency band search schedule. Initially, the communications device registers with a less preferred service provider in a first frequency band. While remaining registered with the less preferred service provider, the device examines several frequency bands in the order specified by the frequency band search schedule. A frequency band is examined by dividing the frequency band into many sub-bands, and by locating the strongest signal above a threshold within the sub-band being examined. The examination continues until a second frequency band having a more preferred service provider is located. The communication device then registers with the more preferred service provider.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: July 9, 2002
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
  • Patent number: 6377787
    Abstract: A communication device locates a preferable wireless service provider in a multi-service provider environment using a frequency band search schedule. Initially, the communications device registers with a less preferred service provider in a first frequency band. While remaining registered with the less preferred service provider, the device examines several frequency bands in the order specified by the frequency band search schedule. A frequency band is examined by dividing the frequency band into many sub-bands, and by locating the strongest signal above a threshold within the sub-band being examined. The examination continues until a second frequency band having a more preferred service provider is located. The communication device then registers with the more preferred service provider. The category of service provider may be identified and displayed on the communication device.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: April 23, 2002
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
  • Patent number: 6311064
    Abstract: A powered down communication device locates a wireless service provider in a multi-service provider environment by examining frequency bands while powered down until a frequency band having an acceptable service provider is located. The frequency bands are examined in an order specified by a stored search schedule. An acceptable service provider is identified by comparing the identity of a service provider specified by an identifier received from a band being examined with a list of acceptable service providers. The communication device then registers with the acceptable service provider when powered up.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: October 30, 2001
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
  • Patent number: 6298235
    Abstract: A powered down communication device locates a wireless service provider in a multi-service provider environment by examining frequency bands while powered down until a frequency band having an acceptable service provider is located. The frequency bands are examined in an order specified by a stored search schedule. An acceptable service provider is identified by comparing the identity of a service provider specified by an identifier received from a band being examined with a list of acceptable service providers. The communication device then registers with the acceptable service provider when powered up.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: October 2, 2001
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
  • Patent number: 6282420
    Abstract: A communication device locates a wireless service provider in a multi-service provider environment using a frequency band search schedule. The frequency band search schedule has a first or home band and a several other frequency bands in a predetermined order. The order of the frequency bands may be programmed by the user or by a home service provider over the air. The communication device searches for an acceptable service provider by examining the home band and then the other bands listed in the frequency band search schedule. The bands are examined in the order specified by the frequency band search schedule. An acceptable service provider is identified by comparing the identity of a service provider specified by an identifier received from a band being examined with a list of acceptable service providers.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: August 28, 2001
    Assignee: AT&T Wireless Services Inc.
    Inventors: Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
  • Patent number: 6223042
    Abstract: A wireless communication device identifies a preferable wireless service provider in a multi-service provider environment using a search schedule based on information gathered by the wireless telecommunications network. The information may be related to prior registrations of the said devices or of other devices. The information may be used to establish the last location of the said device to within a cell and to project the likely location of the device when next powered up. Based on this information, an optimal search schedule may be designed, either in the network or outside of the network, and used by the device on the next power-up. The information or the search schedule may be downloaded to the device either over the air or manually. Additionally, the user may transmit to the network specific information on the user's next location and that information may be combined with other information gathered by the network in the design of a new search schedule for the next power-up of the device.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: April 24, 2001
    Assignee: AT&T Wireless Services Inc
    Inventor: Michael Allen Raffel
  • Patent number: 6195532
    Abstract: A communication device locates a preferable wireless service provider in a multi-service provider environment using a frequency band search schedule. Initially, the communications device registers with a less preferred service provider in a first frequency band. While remaining registered with the less preferred service provider, the device examines several frequency bands in the order specified by the frequency band search schedule. A frequency band is examined by dividing the frequency band into many sub-bands, and by locating the strongest signal above a threshold within the sub-band being examined. The examination continues until a second frequency band having a more preferred service provider is located. The communication device then registers with the more preferred service provider. The category of service provider may be identified and displayed on the communication device.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: February 27, 2001
    Assignee: AT&T Wireless Srcs. Inc.
    Inventors: Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
  • Patent number: 6026299
    Abstract: A powered down communication device locates a wireless service provider in a multi-service provider environment by examining frequency bands while powered down until a frequency band having an acceptable service provider is located. The frequency bands are examined in an order specified by a stored search schedule. An acceptable service provider is identified by comparing the identity of a service provider specified by an identifier received from a band being examined with a list of acceptable service providers. The communication device then registers with the acceptable service provider when powered up.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: February 15, 2000
    Assignee: AT&T Wireless Services Inc
    Inventors: Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
  • Patent number: 5966642
    Abstract: A method and system are disclosed for a transmitter to maintain priority on a communication channel in a multiple wireless communication system environment. An exemplary method for maintaining priority includes transmitting a priority signal to maintain priority for the transmitter on the communication channel. The priority signal may be pseudo-random noise (PRN) signals. In one embodiment, the PRN signals are transmitted in response to activity sensed on the communication channel, one cause of which may be a contending transmitter transmitting on the communication channel. In this embodiment the step of transmitting is for a predetermined duration and causes the contending transmitter to stop transmitting on the communication channel. In an alternate embodiment, the transmission of the PRN signals is periodic and occurs sufficiently often to cause the contending transmitter to abstain from ever transmitting on the communication channel.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: October 12, 1999
    Assignee: AT&T Wireless Services Inc.
    Inventor: Michael Allen Raffel
  • Patent number: 5905955
    Abstract: A communication device locates a wireless service provider in a multi-service provider environment by tuning to a first frequency band and receiving a geographic identifier from the service provider operating in the first frequency band. The received geographic identifier is compared to a listing of stored geographic identifiers in order to attempt to locate a matching stored geographic identifier. Each of the stored geographic identifiers are associated with a desirable frequency band having a desirable service provider. If comparing the received geographic identifier with the matching stored geographic identifiers does not produce a match, frequency bands are examined until a second frequency band having a desirable service provider is located. The listing of stored geographic identifiers is then updated so that the second frequency band is associated with the received geographic identifier.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: May 18, 1999
    Assignee: AT&T Wireless Services Inc.
    Inventors: Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
  • Patent number: 5878328
    Abstract: A level of system self-organization in a wireless communication system is provided using a combined design, planning and verification process to determine system organization parameters. The process determines the parameters based on a measured path loss-related characteristic, such as path loss or bit error rate, between base stations and a plurality of regions in a coverage area. For each region, the characteristic is measured to each base station irrespective of the proximity between the region and the base stations. The measured characteristics enable the prediction of signal strength received at the regions of signals transmitted by the base stations independent of the region location. Accordingly, the characteristics can be measured without information correlating the absolute geographic locations of the regions.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: March 2, 1999
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Kapil K. Chawla, Michael Jeffrey Dunn, Masud Kibria, Michael Allen Raffel, Reinaldo A. Valenzuela
  • Patent number: 5845198
    Abstract: A communication device locates a preferable wireless service provider in a multi-service provider environment using a frequency band search schedule. Initially, the communications device registers with a less preferred service provider in a first frequency band. While remaining registered with the less preferred service provider, the device examines several frequency bands in the order specified by the frequency band search schedule. A frequency band is examined by dividing the frequency band into many sub-bands, and by locating the strongest signal above a threshold within the sub-band being examined. The examination continues until a second frequency band having a more preferred service provider is located. The communication device then registers with the more preferred service provider. The order of search of the frequency spectrum may be based upon registration history of the communication device.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: December 1, 1998
    Assignee: AT&T Wireless Services Inc.
    Inventors: Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
  • Patent number: 5832367
    Abstract: A communication device locates a wireless service provider in a multi-service provider environment using a frequency band search schedule. The frequency band search schedule has a first or home band and a several other frequency bands in a predetermined order. The order of the frequency bands may be programmed by the user or by a home service provider over the air. The communication device searches for an acceptable service provider by examining the home band and then the other bands listed in the frequency band search schedule. The bands are examined in the order specified by the frequency band search schedule. An acceptable service provider is identified by comparing the identity of a service provider specified by an identifier received from a band being examined with a list of acceptable service providers.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: November 3, 1998
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
  • Patent number: 5819173
    Abstract: A method and apparatus is provided for communicating on a wireless network which offers a selected service. In accordance with the method, a wireless communicator is tuned to a first signaling control channel broadcast by a wireless network. The first channel identifies one or more services provided over that network. This procedure is repeated for successive signaling control channels until a wireless network providing the selected service is identified. Once this has been identified, communication is conducted between the wireless communicator and the network.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: October 6, 1998
    Assignee: AT&T Wireless Services, Inc.
    Inventors: Christopher Gregory Lawrence, Michael Allen Raffel