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. 05, 1991
Filed:
Jun. 26, 1990
Takaho Koshiishi, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An acoustic coupler for a data communication device with a housing having a receiver and a coupling member mechanically coupling the receive housing and the transmitter housing. The acoustic coupler also includes a first microphone as part of the receiver for receiving an acoustic signal from a transmitter portion of a handset of a telephone, when the acoustic coupler is set to the handset. A first speaker is fastened to the second end of the receive part and outputting an acoustic signal to an operator, with yet a second speaker being fastened receiver portion of the housing for outputting an acoustic signal to a receiver portion of the handset. A second microphone is fastened to another part of the receiver which is for inputting an acoustic signal from the operator, and a coupling circuit for electrically coupling the first microphone, the second microphone, the first speaker and the second speaker to a data transmission apparatus. This arrangement allows for a more reliable connection of a data transmission device to the communication medium, be it radio or wired.