Patents by Inventor Steven Christenson

Steven Christenson 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: 11147918
    Abstract: A medicament delivery system configured to reduce the risk of inadvertently injecting medicament directly into a patient during a refill procedure via an external refilling apparatus. The medicament delivery system may include an implantable medical pump having a refillable medicament reservoir accessible via an access port, wherein the refillable medicament reservoir includes a flexible diaphragm having a nonlinear spring rate configured to create a relative vacuum within a medicament chamber when medicament is expelled from the medicament chamber beyond a predefined threshold, so as to spontaneously draw a quantity of medicament into the medicament chamber during the refill procedure to reestablish the predefined threshold, thereby confirming proper placement of a portion of the external refilling apparatus into the access port.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: October 19, 2021
    Assignee: Medtronic, Inc.
    Inventors: Steven Christenson, Touby Drew, James M. Haase, Scott A. Sarkinen
  • Publication number: 20200121850
    Abstract: A medicament delivery system configured to reduce the risk of inadvertently injecting medicament directly into a patient during a refill procedure via an external refilling apparatus. The medicament delivery system may include an implantable medical pump having a refillable medicament reservoir accessible via an access port, wherein the refillable medicament reservoir includes a flexible diaphragm having a nonlinear spring rate configured to create a relative vacuum within a medicament chamber when medicament is expelled from the medicament chamber beyond a predefined threshold, so as to spontaneously draw a quantity of medicament into the medicament chamber during the refill procedure to reestablish the predefined threshold, thereby confirming proper placement of a portion of the external refilling apparatus into the access port.
    Type: Application
    Filed: October 23, 2018
    Publication date: April 23, 2020
    Inventors: Steven Christenson, Touby Drew, James M. Haase, Scott A. Sarkinen
  • Publication number: 20200121849
    Abstract: A medicament delivery system configured to serve as an aid in guiding a user through the procedural steps of refilling an implantable medical pump with an external refilling apparatus by tying the physical acts associated with a refill procedure to relevant information displayed on a user interface of an external programmer. The implantable medical pump may include a refillable medicament reservoir accessible via an access port having a needle detection sensor configured to detect the presence of a portion of an external refilling apparatus within the access port, and an external programmer configured to communicate with the implantable medical pump during the refill procedure, wherein sensed data gathered by the needle detection sensor is utilized by the external programmer to prompt the display of information relative to the procedural steps of the refill procedure.
    Type: Application
    Filed: October 23, 2018
    Publication date: April 23, 2020
    Inventors: Steven Christenson, Touby Drew, James M. Haase, Scott A. Sarkinen
  • Patent number: 9319852
    Abstract: A system and methodology to facilitate communication between non-compatible communication devices by utilization of a dynamic media proxy is provided. Information associated with an endpoint, such as, media capabilities, identity and system resource information is collected. Media proxy'ing is performed as part of capability negotiation. A dynamic media proxy is employed based on an analysis of the collected information. An analysis component can identify an endpoint that does not adhere to specific rules of transmission and can dynamically connect such an endpoint to a VTG (virtual talk group) via a proxy to prevent the endpoint from transmitting media into an active VTG that already has multiple talkers streaming media. Additionally, the location where media processing can occur can be dynamically determined based on the available system resources.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: April 19, 2016
    Assignee: Cisco Technology, Inc.
    Inventors: Shmuel Shaffer, Amit Barave, Steven Christenson, Marcelo Oliveira
  • Patent number: 9049737
    Abstract: In one embodiment, a method and apparatus of multiplexing and demultiplexing radio channels includes receiving data through at least one multicast media channel available for use in an Internet Protocol Interoperability and Communications System (IPICS) comprising multiple communication endpoints linkable to a Land Mobile Radio (LMR) in the IPICS; channel mapping the at least one multicast media channel to multiple media channels of the LMR; receiving an audio signal through the at least one multicast media channel; controlling access to the LMR by applying communication access control policies based on the received data upon reception of the audio signal; and operatively linking the LMR to a specified endpoint through the at least one multicast media channel based on the communication access control policies.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: June 2, 2015
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Marcelo Oliveira, Steven Christenson, Amit Barave
  • Publication number: 20150045082
    Abstract: A system and methodology to facilitate communication between non-compatible communication devices by utilization of a dynamic media proxy is provided. Information associated with an endpoint, such as, media capabilities, identity and system resource information is collected. Media proxy'ing is performed as part of capability negotiation. A dynamic media proxy is employed based on an analysis of the collected information. An analysis component can identify an endpoint that does not adhere to specific rules of transmission and can dynamically connect such an endpoint to a VTG (virtual talk group) via a proxy to prevent the endpoint from transmitting media into an active VTG that already has multiple talkers streaming media. Additionally, the location where media processing can occur can be dynamically determined based on the available system resources.
    Type: Application
    Filed: October 24, 2014
    Publication date: February 12, 2015
    Inventors: Shmuel Shaffer, Amit Barave, Steven Christenson, Marcelo Oliveira
  • Patent number: 8892149
    Abstract: A system and methodology to facilitate communication between non-compatible communication devices by utilization of a dynamic media proxy is provided. Information associated with an endpoint, such as, media capabilities, identity and system resource information is collected. Media proxy'ing is performed as part of capability negotiation. A dynamic media proxy is employed based on an analysis of the collected information. An analysis component can identify an endpoint that does not adhere to specific rules of transmission and can dynamically connect such an endpoint to a VTG (virtual talk group) via a proxy to prevent the endpoint from transmitting media into an active VTG that already has multiple talkers streaming media. Additionally, the location where media processing can occur can be dynamically determined based on the available system resources.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: November 18, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Shmuel Shaffer, Amit Barave, Steven Christenson, Marcelo Oliveira
  • Patent number: 8831664
    Abstract: A method is provided in one example embodiment and includes monitoring media streams associated with channels in a communication environment. The method also includes receiving an alert in one of the media streams and elevating a priority associated with the media stream receiving the alert. Elevating the priority can include increasing the volume of the media stream receiving the alert, changing a spatial direction for rendering the media stream receiving the alert, rendering the media stream receiving the alert to a priority spatial direction, identifying a primary channel and rendering the alert message to the primary channel, turning a volume down on media streams not receiving the alert, or a combination thereof.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: September 9, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Shmuel Shaffer, Steven Christenson
  • Patent number: 8589678
    Abstract: In one embodiment, a method can include: receiving rules in an interoperability server, the rules being related to access control for an endpoint coupled to a variable source content stream via a multicast network; and sending to the endpoint using in-band controls of the variable source content stream via the multicast network: a description of content streams available for selection by the endpoint; a procedure for selecting an available content stream; and permission for accessing the selected content stream, the permission being based on the rules.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: November 19, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Steven Christenson, Eric Cozzi, Saad Malik, Rajesh Basawa, Leonard Brzezinski, Shmuel Shaffer
  • Patent number: 8547856
    Abstract: In one embodiment, an apparatus can include: a status detector configured to determine a status associated with an input stream; a parameter controller configured to adjust a parameter in response to a change in the status; and a rendering controller configured to receive the input stream, and to provide a rendered stream in response to the input stream and the parameter.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: October 1, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Maximilian Spring, Shmuel Shaffer, Eric Cozzi, Steven Christenson
  • Patent number: 8432834
    Abstract: In one embodiment, techniques for processing voice collisions are provided. A voice collision of two or more voice streams associated with two or more speakers is determined. The voice collision of the two or more voice streams is dynamically disambiguated. The two or more voice streams are then rendered such that the voice collision is disambiguated. The voice collision may be disambiguated using spatial relocation, buffering, etc.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: April 30, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Shmuel Shaffer, Steven Christenson
  • Patent number: 8358599
    Abstract: In one embodiment, a method includes obtaining a first packet associated with a conference that has a first participant associated therewith. The first participant is identified as a principal participant. The method also includes determining if the first packet is associated with the first participant, and providing an audible indication that the first packet is associated with the first participant if it is determined that the first packet is associated with the first participant.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: January 22, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Shmuel Shaffer, Steven Christenson
  • Publication number: 20120093057
    Abstract: In one embodiment, a method and apparatus of multiplexing and demultiplexing radio channels includes receiving data through at least one multicast media channel available for use in an Internet Protocol Interoperability and Communications System (IPICS) comprising multiple communication endpoints linkable to a Land Mobile Radio (LMR) in the IPICS; channel mapping the at least one multicast media channel to multiple media channels of the LMR; receiving an audio signal through the at least one multicast media channel; controlling access to the LMR by applying communication access control policies based on the received data upon reception of the audio signal; and operatively linking the LMR to a specified endpoint through the at least one multicast media channel based on the communication access control policies.
    Type: Application
    Filed: December 5, 2011
    Publication date: April 19, 2012
    Inventors: Marcelo Oliveira, Steven Christenson, Amit Barave
  • Patent number: 8098610
    Abstract: In one embodiment, a method and apparatus of multiplexing and demultiplexing radio channels includes receiving data through at least one multicast media channel available for use in an Internet Protocol Interoperability and Communications System (IPICS) comprising multiple communication endpoints linkable to a Land Mobile Radio (LMR) in the IPICS; channel mapping the at least one multicast media channel to multiple media channels of the LMR; receiving an audio signal through the at least one multicast media channel; controlling access to the LMR by applying communication access control policies based on the received data upon reception of the audio signal; and operatively linking the LMR to a specified endpoint through the at least one multicast media channel based on the communication access control policies.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: January 17, 2012
    Assignee: Cisco Technology, Inc.
    Inventors: Marcelo Oliveira, Steven Christenson, Amit Barave
  • Publication number: 20110299404
    Abstract: A method is provided in one example embodiment and includes monitoring a plurality of channels provisioned for an endpoint. The method also includes reacting to an alert message by adjusting one of the channels for the endpoint. The adjustment is a selected one of increasing a volume associated with the channel receiving the alert message, or changing a spatial direction from which the alert message and an associated media stream are conveyed to the endpoint. In other embodiments, the adjustment provisions the alert message from a left ear to a right ear of an end user of the endpoint. In still other embodiments, the adjustment includes determining which is a primary channel of the channels and provisioning the alert message to the primary channel of the endpoint. The media stream associated with the alert message is also moved to a same spatial direction along with the alert message.
    Type: Application
    Filed: August 16, 2011
    Publication date: December 8, 2011
    Inventors: Shmuel Shaffer, Steven Christenson
  • Patent number: 8041378
    Abstract: A method is provided in one example embodiment and includes monitoring a plurality of channels provisioned for an endpoint. The method also includes reacting to an alert message by adjusting one of the channels for the endpoint. The adjustment is a selected one of increasing a volume associated with the channel receiving the alert message, or changing a spatial direction from which the alert message and an associated media stream are conveyed to the endpoint. In other embodiments, the adjustment provisions the alert message from a left ear to a right ear of an end user of the endpoint. In still other embodiments, the adjustment includes determining which is a primary channel of the channels and provisioning the alert message to the primary channel of the endpoint. The media stream associated with the alert message is also moved to a same spatial direction along with the alert message.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: October 18, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Shmuel Shaffer, Steven Christenson
  • Publication number: 20100284310
    Abstract: In one embodiment, a method includes obtaining a first packet associated with a conference that has a first participant associated therewith. The first participant is identified as a principal participant. The method also includes determining if the first packet is associated with the first participant, and providing an audible indication that the first packet is associated with the first participant if it is determined that the first packet is associated with the first participant.
    Type: Application
    Filed: May 5, 2009
    Publication date: November 11, 2010
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Shmuel Shaffer, Steven Christenson
  • Publication number: 20100246466
    Abstract: In one embodiment, a method and apparatus of multiplexing and demultiplexing radio channels includes receiving data through at least one multicast media channel available for use in an Internet Protocol Interoperability and Communications System (IPICS) comprising multiple communication endpoints linkable to a Land Mobile Radio (LMR) in the IPICS; channel mapping the at least one multicast media channel to multiple media channels of the LMR; receiving an audio signal through the at least one multicast media channel; controlling access to the LMR by applying communication access control policies based on the received data upon reception of the audio signal; and operatively linking the LMR to a specified endpoint through the at least one multicast media channel based on the communication access control policies.
    Type: Application
    Filed: March 25, 2009
    Publication date: September 30, 2010
    Applicant: Cisco Technology, Inc.
    Inventors: Marcelo Oliveira, Steven Christenson, Amit Barave
  • Publication number: 20100159977
    Abstract: A method is provided in one example embodiment and includes monitoring a plurality of channels provisioned for an endpoint. The method also includes reacting to an alert message by adjusting one of the channels for the endpoint. The adjustment is a selected one of increasing a volume associated with the channel receiving the alert message, or changing a spatial direction from which the alert message and an associated media stream are conveyed to the endpoint. In other embodiments, the adjustment provisions the alert message from a left ear to a right ear of an end user of the endpoint. In still other embodiments, the adjustment includes determining which is a primary channel of the channels and provisioning the alert message to the primary channel of the endpoint. The media stream associated with the alert message is also moved to a same spatial direction along with the alert message.
    Type: Application
    Filed: December 19, 2008
    Publication date: June 24, 2010
    Inventors: Shmuel Shaffer, Steven Christenson
  • Publication number: 20100057860
    Abstract: Systems and methods of conveying feedback concerning transmissions sent using a one-to-many protocol are disclosed. Such feedback includes information indicating whether a message was received by anyone, by whom, whether the message was accessed, and whether a receiver of the message has acknowledged the message. A receiver is configured to provide such feedback, either in response to receiving a request to send feedback, or automatically. The feedback is sent via the same communications channel the message was sent on, or via a different communications channel. A message's sender is informed that feedback has been received for a given message, and a searchable log is kept of the feedback.
    Type: Application
    Filed: August 29, 2008
    Publication date: March 4, 2010
    Inventors: Donna M. Fry, Steven Christenson, Marcelo Oliveira, Mayank M. Singi