Abstract: The present invention is a dynamic remotely accessible medical record system comprising a multi-level access medical information database containing medical information networked with one or more remote terminals, and optionally with one or more input devices. The database provides for a user authorization protocol to protect the confidentiality of the records contained therein. The user authorization protocol provides a base access level and a high access level. The base access level allows the authorized user to view a particular patients information. A base access level user may not directly update the database. A high access level user may both view and update a patient's medical information. A user may be either a person at a networked terminal, a telemedicine apparatus, or an electronic medical measurement instrument.

Abstract: The present invention relates to digital telephonic system for stethoscope signal processing. Stethoscope sounds are converted to electrical signals and conveyed in digital format to an RS232 data port of a data transmission product. In the alternate, a modem can be used to convey the signal via a home telephone line. At the receiving end, the reverse process takes place to convert the data back to audible sound. The fidelity and accuracy of the stethoscope sounds is maintained at the receiving end using asynchronous data communications and error protection techniques.

Abstract: The present invention relates to a remote stethoscope system that allows a doctor at one location to listen to the stethoscope sounds coming from a stethoscope being used by a patient in his or her remotely-located home. The acoustic stethoscope sounds are converted into electrical signals, frequency shifted up to the telephone band, and then conveyed over a conventional telephone line. At the doctor's location, the signals are shifted down to their original frequencies and then converted back to audible sound for the doctor's analysis. The sensor used by the patient picks up a wide range of frequencies without any manipulation by the patient.