Patents by Inventor Stephen S. Carter
Stephen S. Carter 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).
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Patent number: 9065553Abstract: The various embodiments provide systems, devices, and methods which include an acoustic tag configured to transmit an acoustic signal through a contact medium that may be received by an acoustic modem, with the acoustic signal configured to transmit information. By modulating sound traveling through an acoustic connection between the fluid container and a pump, meter or valve, information such as an identifier of the fluid or container may be transmitted without risk of confusion with other fluid containers in the vicinity. In a medical embodiment, IV fluid and the IV drip tube provide a fluid and plastic acoustic connection to an IV pumping or metering device and an IV bag through which sound may be transmitted. The transmission of identification information through this physical connection may insure that the pumping or metering device only communicates with the IV bag coupled to the pump. Acoustic tags may be active or passive.Type: GrantFiled: September 12, 2011Date of Patent: June 23, 2015Assignee: QUALCOMM IncorporatedInventors: Stephen S. Carter, Vito R. Bica, Jin Guo
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Publication number: 20130064044Abstract: The various embodiments provide systems, devices, and methods which include an acoustic tag configured to transmit an acoustic signal through a contact medium that may be received by an acoustic modem, with the acoustic signal configured to transmit information. By modulating sound traveling through an acoustic connection between the fluid container and a pump, meter or valve, information such as an identifier of the fluid or container may be transmitted without risk of confusion with other fluid containers in the vicinity. In a medical embodiment, IV fluid and the IV drip tube provide a fluid and plastic acoustic connection to an IV pumping or metering device and an IV bag through which sound may be transmitted. The transmission of identification information through this physical connection may insure that the pumping or metering device only communicates with the IV bag coupled to the pump. Acoustic tags may be active or passive.Type: ApplicationFiled: September 12, 2011Publication date: March 14, 2013Inventors: Stephen S. CARTER, Vito R. BICA, Jin GUO
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Patent number: 7373175Abstract: A server-assisted approach for synchronizing timebases (120 and 140) in a client-server system utilizes global positioning system (GPS) receivers (136 and 110) at both the client and server. In a typical implementation, the GPS receiver (136) associated with the client system receives fragmentary or incomplete data from satellites that are part of the GPS. Thus, the client GPS receiver (136) is capable of receiving only fragmentary information and cannot derive accurate time signals therefrom. The server system (102) is associated with a GPS receiver (110) capable of generating accurate time and position data based on signals from GPS satellites (114). The fragmentary information from the client GPS receiver (136) is transmitted to the server (126) along with time information indicating the time at which the client captured the fragmentary GPS data. The server (126) analyzes the fragmentary GPS data with respect to the complete GPS data available from the GPS receiver (110) associated with the server.Type: GrantFiled: March 8, 2002Date of Patent: May 13, 2008Assignee: QUALCOMM IncorporatedInventors: Stephen S. Carter, Paul K. Johnson
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Patent number: 7333614Abstract: A system and method for encrypting all channels of a wireless spread spectrum communication at the chip level. The PN sequence is encrypted with one or more encryption sequences and then used to spread the signal.Type: GrantFiled: November 16, 2001Date of Patent: February 19, 2008Assignee: QUALCOMM IncorporatedInventors: Tad Jarosinski, Daniel H. Agre, Stephen S. Carter, Mehraban Iraninejad, Joseph P. Odenwalder, Roy Franklin Quick, Charles E. Wheatley
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Publication number: 20030095662Abstract: A system and method for encrypting all channels of a wireless spread spectrum communication at the chip level. The PN sequence is encrypted with one or more encryption sequences and then used to spread the signal.Type: ApplicationFiled: November 16, 2001Publication date: May 22, 2003Inventors: Tad Jarosinski, Daniel H. Agre, Stephen S. Carter, Mehraban Iraninejad, Joseph P. Odenwalder, Roy Franklin Quick, Charles E. Wheatley
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Publication number: 20020167934Abstract: A server-assisted approach for synchronizing timebases (120 and 140) in a client-server system utilizes global positioning system (GPS) receivers (136 and 110) at both the client and server. In a typical implementation, the GPS receiver (136) associated with the client system receives fragmentary or incomplete data from satellites that are part of the GPS. Thus, the client GPS receiver (136) is capable of receiving only fragmentary information and cannot derive accurate time signals therefrom. The server system (102) is associated with a GPS receiver (110) capable of generating accurate time and position data based on signals from GPS satellites (114). The fragmentary information from the client GPS receiver (136) is transmitted to the server (126) along with time information indicating the time at which the client captured the fragmentary GPS data. The server (126) analyzes the fragmentary GPS data with respect to the complete GPS data available from the GPS receiver (110) associated with the server.Type: ApplicationFiled: March 8, 2002Publication date: November 14, 2002Inventors: Stephen S. Carter, Paul K. Johnson
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Patent number: 5812538Abstract: A communication system (10), and a method executed by same, for allocating communications traffic through a plurality of satellites (12) of a constellation of low earth orbit satellites. Each of the plurality of satellites is oriented, at any given time when in view of a ground station (18), at a particular elevation angle. The method comprises the steps of: (a) providing each of the plurality of satellites with a receiver for receiving communication links from the ground station and a transmitter for transmitting communication links to user terminals; (b) in response to a request for service, determining if a highest elevation angle satellite can be assigned a new communications link; (c) if yes, assigning a new communication link to the highest elevation angle satellite; (d) if no, determining if a second highest elevation angle satellite can be assigned a new communications link; and (e) if yes, assigning a new communication link to the second highest elevation angle satellite.Type: GrantFiled: January 3, 1997Date of Patent: September 22, 1998Assignees: Globalstar L.P., Qualcomm IncorporatedInventors: Robert A. Wiedeman, Paul A. Monte, Stephen S. Carter, William Ames
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Patent number: 5691974Abstract: Method and apparatus for tracking the frequency and phase of signals in spread spectrum communication systems that makes more efficient use of available carrier frequency and phase information by utilizing a substantial portion or all of the energy occupying the frequency spectrum of a received carrier signal, including energy from communication signals intended for other system users. Multiple spread spectrum communication signals are input in parallel to data receivers where they are despread using preselected despreading codes at an adjustable phase angle and decoded over multiple orthogonal codes active within the communication system. Multiple decoded signals are then combined to form a single phase detection signal which is used by at least one tracking loop to track frequency and phase of the carrier signal for the received communication signals. The tracking loop generates a timing signal which is used to adjust the phase angle used during despreading.Type: GrantFiled: January 4, 1995Date of Patent: November 25, 1997Assignee: Qualcomm IncorporatedInventors: Ephraim Zehavi, Stephen S. Carter, Klein S. Gilhousen
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Patent number: 5666122Abstract: The signal acquisition process of the present invention enables a radio to rapidly acquire a pilot signal from a satellite after the radio has been out of contact with the satellite for a length of time. The radio first acquires a satellite pilot signal and determines its position in relation to the earth. If the radio is now shut off or loses track of the pilot signal for some other reason, the radio keeps track of the length of time that it has been out of contact with the satellite. This length of time enables the radio to estimate the extent of possible position changes and, therefore, which satellites might be in view and their relative positions to the radio. This allows the radio to make assumptions about variables such as the Doppler shift of the signal that reduces the uncertainty inherent in the acquisition process and the size of the window that must be searched.Type: GrantFiled: July 11, 1994Date of Patent: September 9, 1997Assignee: Qualcomm IncorporatedInventor: Stephen S. Carter
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Patent number: 5592481Abstract: A communication system (10), and a method executed by same, for allocating communications traffic through a plurality of satellites (12) of a constellation of low earth orbit satellites. Each of the plurality of satellites is oriented, at any given time when in view of a ground station (18), at a particular elevation angle. The method comprises the steps of: (a) providing each of the plurality of satellites with a receiver for receiving communication links from the ground station and a transmitter for transmitting communication links to user terminals; (b) in response to a request for service, determining if a highest elevation angle satellite can be assigned a new communications link; (c) if yes, assigning a new communication link to the highest elevation angle satellite; (d) if no, determining if a second highest elevation angle satellite can be assigned a new communications link; and (e) if yes, assigning a new communication link to the second highest elevation angle satellite.Type: GrantFiled: June 6, 1995Date of Patent: January 7, 1997Assignees: Globalstar L.P., Qualcomm IncorporatedInventors: Robert A. Wiedeman, Paul A. Monte, Stephen S. Carter, William Ames