Patent · US Expired

Portable navigational communications transceiver

US4843399A · kind A · utility

20Cited by
38References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 30, 1986
Grant dateJun 27, 1989
Priority date
Expiry dateJul 30, 2006

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01S1/46
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A hand held navigational-communications transceiver is compressed into a case having a volume of about 37 cubic inches by defining functional implementation for VOR (VHF omni-directional range) navigation. The transceiver can be selectively switched to process and display directional radial information. A microprocessor circuit provides primary circuitry information in combination with transceiver function software held in ROM (read only memory). A plurality of pre-programmed frequencies may be selected.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.