The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 1977
Filed:
Sep. 29, 1975
Akio Suehiro, Yokohama, JA;
Hitachi, Ltd., , JA;
Abstract
A system for transmitting and receiving audio information includes an audio response unit for reading out pre-recorded digital audio information and editing the digital audio information in digital signal form. A transmitter is provided for transmitting the edited digital audio information, and a converter is provided at the receiving side for converting the transmitted digital audio information into an analog audio signal. One feature of the invention is that the announcer audio information in digital form may be mixed with the pre-recorded audio information in digital signal form.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile