Abstract: A computing device includes a memory device, a communication module, an interface, a processor, a display controller, and an input device. The communication module wirelessly receives a stream of first electrogram waveforms (EGMs) from an implantable medical device (IMD). The interface receives a stream of second EGMs. The processor stores the first and second EGMs and retrieves the stored first and second EGMs. The display controller displays the first and second EGMs together when the first and second EGMs are received. The input device is configured to receive a selection command from a user. The processor retrieves a portion of at least one of the first and second stored EGMs in response to the selection command. The display controller displays the retrieved portion of the at least one of the first and second stored EGMs while the processor concurrently stores the streams of the first and second EGMs.

Abstract: An ambulatory recording system for medical and especially diagnostic purposes is described having synchronized communication between two processors. The recorder features two processors which are of differing architectures—the first processor being a real time processor which handles the sampling function, the second processor being a non real time processor which handles the operating system function. The invention further includes a protocol for communication between the two processors which permits the two processors to have synchronized and reliable communication.

Abstract: An ambulatory recorder having real time non-real time processors is described. The real time processor handles sampling functions while the non real time processor handles other functions, such as high processing operations associated with multitasking, graphical user interface, floating point calculation, Infra Red communication and long term memory storage. The second processor is primarily provided to operate a Windows CE operating system as well as one or more embedded applications. Through this design, electrical power provided by a battery is only consumed by those components essential to device operation at any particular time.

Abstract: An ambulatory recording system, for medical and especially diagnostic purposes, is described having a communication watchdog between two processors. The two processors may be of differing types. For example, the first processor may be real time processor ("RTP") which handles the sampling function, while the second processor may be a non real time processor ("NRTP") which handles the operating system function. This dual processor design permits relatively low power consumption for data recording (which is handled by the relatively lower power consuming RTP), while also providing a graphical user interface for user simple user operation (which is handled by the relatively higher power consuming NRTP). A communication watchdog between the two processors is provided to reset the device upon the detection of a processor failure or communication failure between the two processors.

Abstract: A multimedia interface presents information and receives user commands and data for a computer system. The multimedia interface operates in parallel with another application software module, such as an expert system. To add multimedia features to the application software module, the module is modified so as to generate multimedia commands at the same time as it displays text on a text monitor. The multimedia commands, which are held in a queue, provide additional information in the form of video images and generated speech corresponding to the displayed text. In addition, the multimedia commands are split into at least two sets: one set which is dispatched to the user substantially immediately after displaying the corresponding text, and one set which is dispatched upon request by the user. In the preferred embodiment, the multimedia interface presents information to the user through text, graphics, video, sound, speech production, and printed output.

Abstract: A multimedia interface presents information and receives user commands for a computer system. The multimedia interface operates in parallel with another application software module, such as an expert system. To add multimedia features to the application software module, the module is modified so as to generate multimedia commands at the same time as it displays text on a text monitor. The multimedia commands, which are held in a queue, provide additional information in the form of video images and generated speech corresponding to the displayed text. In addition, the multimedia commands are split into at least two sets: one set which is dispatched to the user substantially immediately after displaying the corresponding text, and one set which is dispatched only upon request by the user. In the preferred embodiment, the multimedia interface presents information to the user through text, graphics, video speech production, and printed output.