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Biomedical subjects

W J Tompkins

Publications and source records attributed to W J Tompkins.

65 records · Page 4Linked to original sources
PubMed1980

A fast microcomputer language for signal acquisition, processing and display.

Data Acquisition and Display (DAD) language was designed to facilitate the application of 8080- and Z80-based microcomputers to problems involving signal acquisition, processing and display. DAD supports instructions that are similar to those BASIC but also has instructions found in the structured programming languages. Implemented as an interactive compiler and designed around a hardware arithmetic processing unit interfaced to the S100 bus, DAD executes its instructions considerably faster than most high-level languages. DAD supports floating point, double-precision integer and an additional single-byte-integer data structure for the acquisition and processing of 8-bit resolution data. DAD interfaces with peripherals that use the unsigned-magnitude or 2'-s-complement data format. A hardware programmable interval timer supplies accurate timing for many of DAD's instructions. DAD operates under and relies upon the CP/M operating system for its console and disk file input/output.

Computers↗
PubMed1979

Heart rate recorder.

Explore the source record for details and available documents.

Electronics, Medical↗
PubMed1978

An approach for physiological signal processing by laboratory minicomputer.

Physiological signal-processing instrumentation including the digital oscilloscope is becoming more dependent upon the microprocessor. Minicomputer software has been developed which demonstrates data-processing approaches that should be considered for incorporation into the firmware of digital oscilloscopes. This core-resident software called DATAC operates in an interpretive mode and provides such features as digital signal editing, filtering, and basic processing including differentiation and integration.

Computers↗
PubMedDate not supplied

A microprocessor-based arrhythmia monitor/recorder for the operating and recovery rooms.

A microprocessor-based cardiac arrhythmia monitor/recorder was designed to detect and document arrhythmias that occur during general anesthesia. A Holter tape recorder controlled by the monitor records arrhythmias and associated annotation. These condensed records are later manually scanned for final classification. The project was undertaken to build a database of arrhythmias correlated with various inhalation anesthetic agents, while simultaneously evaluating-time rhythm analysis algorithms.

Anesthesia, Inhalation↗
PubMedDate not supplied

Modular design of microcomputer-based medical instruments.

A modular design approach is effective for developing compact microcomputer-based medical instruments. Each instrument consists of two modules: a microcomputer instrument module that provides data conversion and computing functions and a characteristic module that does analog signal conditioning and includes all interfaces to the environment. The five instruments summarized here are: (a) a portable, battery-operated arrhythmia monitor for ambulatory patients; (b) a physician's computer for remote telephone communication with the portable monitor; (c) a battery-powered arrhythmia monitor/recorder for the operating room; (d) a portable, battery-operated biofeedback device for speech therapy; and (e) a neuromuscular blockade monitor for the operating room.

Computers↗