Cardiac Pacemakers, Inc.

Roku, Inc.

Other

Paul Jeffrey Holmquist

Joseph E Bange

Allan Thomas Koshiol

Thomas J Harris

Shashank C Merchant

Seunghyeong Lee

Brian Paul Johnson

Chungwon Seo

Bruce William Randall

Karen M Lent

Karen M Kramer

Jeffrey Allen Von Arx

Vineel Vallapureddy

Cynthia Morrissey

Earle Timothy Roberts

Abhi Chavan

Paul B Englram

Joe Bange

Al Koshiol

One high-level aspect of a content-modification system and related methods may involve facilitating content modification by a content-presentation device of received broadcast content in a controlled manner, while under circumstances in which some events that can impact timing may be unpredictable. In particular, certain operations by a content-presentation device may involve matching received content with specific expected content as determined by one or another component of the content-modification system, in order to confirm proper conditions are met for the content-presentation device to proceed with, or continue, content-modification operations. It can happen the matching procedure becomes subject or susceptible to timing irregularities, or jitter. In some instances, jitter may impact the ability to derive the benefits of content modification. Accordingly, example embodiments herein are directed to systems and method for compensation and/or mitigating the effects of jitter.

Content-modification system with jitter effect mitigation feature

Methods and systems for media access control allow master and slave nodes of a network to communicate using the same carrier while avoiding collisions of transmissions. At least one slave node is an implantable device. Master nodes initiate all data exchange sequences, and slave nodes are responsive to the data exchange sequences. The exchange sequences begin by master nodes contending for use of the carrier through a countdown procedure. A set order of communications occurs between a master node who won the contention and a slave node being communicated with by the master node to transfer a data frame. Contention is then repeated to determine the next master node that is allowed to transfer a data frame. New master nodes entering the network employ a discovery process to poll for existing devices in the network.

Methods and systems for providing multiple access within a network

A telemetry system is presented for enabling wireless communications between an implantable medical device and an external device in a manner which reduces the power requirements of the implantable device by duty cycling its wireless communication circuitry. A wakeup scheme for the implantable device is provided in which the external device transmits a data segment containing a repeating sequence of special wakeup characters in order to establish a communications session with the implantable device. The wakeup scheme may be designed to operate in the context of a handshaking protocol for collision avoidance.

System and method for RF wake-up of implantable medical device

A telemetry system is presented for enabling radio-frequency (RF) communications between an implantable medical device and an external device in a manner which reduces the power requirements of the implantable device by duty cycling its circuitry. A wakeup scheme for the implantable device is provided in which the external device transmits a data segment containing a repeating sequence of special wakeup characters in order to establish a communications session with the implantable device. The wakeup scheme may be designed to operate in the context of a handshaking protocol for collision avoidance.

A telemetry system is presented for enabling radio-frequency (RF) communications between an implantable medical device and an external device in a manner which reduces the power requirements of the implantable device by duty cycling its RF circuitry.

System and method for RF transceiver duty cycling in an implantable medical device

A telemetry system is presented for enabling radio-frequency (RF) communications between an implantable medical device and an external device in a manner which reduces the power requirements of the implantable device by duty cycling its RF circuitry. A wakeup scheme for the implantable device is provided in which the external device transmits a data segment containing a repeating sequence of special wakeup characters in order to establish a communications session with the implantable device. The wakeup scheme may be designed to operate in the context of a handshaking protocol for collision avoidance.

A telemetry system for radio-frequency communications between an implantable medical device and an external device providing improved noise immunity is disclosed. Multiple communications channels are used to enable establishment and re-establishment of communications between a particular pair of devices in a multiple device environment.

Dynamic channel selection for RF telemetry with implantable device

A system and method for providing digital data communications over a wireless intra-body network is presented. A physical protocol layer is logically defined with an identifier uniquely assigned to a plurality of implantable devices in an intra-body network. Functions are specified within the physical protocol layer to transact data exchange over a wireless interface. A slave implantable device is activated in response to an activation signal transmitted through the wireless interface by a master implantable device. A wireless communications link is established between the slave implantable device and the master implantable device upon matching of the identifier assigned to the slave implantable device. Data is communicated intra-bodily over the communications link.

System and method for providing digital data communications over a wireless intra-body network

An implantable pulse generator communicates with external devices such as device programmers and network repeaters to exchange data. The communication utilizes a communication protocol such that data is transferred in packets and transport control information is included for each of the packets. Network routing information may also be provided for each of the packets to establish additional capabilities including network addressing, priority control, or recipient validation. Information exchange instructions are executed by the implantable pulse generator to take data from one or more application programs being executed by the implantable pulse generator, divide the data into packets, and add the transport control information, and network routing information if desired, for outgoing packets. Additionally, the information exchange instructions may be executed by the implantable pulse generator to extract the network routing information if available and the transport control information from incoming packets and to reconstruct the data from the packets and provide the data to the one or more application programs.

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Andover, MN, United States of America

Paul Jeffrey Holmquist