Method and apparatus for a communication device for use by a hearing impaired/mute or deaf person or in silent environments

• US 5,995,590 A
• Filed: 03/05/1998
• Issued: 11/30/1999
• Est. Priority Date: 03/05/1998
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Ramabhadran, Bhuvana, Narayanaswami, Chandrasekhar, Ittycheriah, Abraham P., Picheny, Michael Alan, Brunet, Peter Thomas
• Primary Examiner(s): Chan, Wing F.
• Application Number:
  US09/035,493
• Time in Patent Office: 635 Days
• Field of Search: 379/52, 379/93.05, 379/93.08, 379/93.17-93.19, 379/93.23-93.28, 340/825.19, 455/466, 455/557, 455/556
• US Class Current: 379/52
• CPC Class Codes: G10L 13/00 Speech synthesis; Text to speech systems
• CPC Class Codes: H04M 1/2475 for a hearing impaired user

Abstract

A method and apparatus is disclosed that allows people to carry on unobtrusive phone conversations in business or other settings where it is either not possible or impolite to talk. In the system of FIG. 1, the telephone user one will listen in the same manner as with a regular telephone. However, he will not speak into the telephone microphone. User one instead employs a unit including a keyboard to enter the text corresponding to what he wants to say. The text is converted into a synthesized speech using TTS apparatus and a voice output is sent to the microphone of the phone apparatus. The telephone apparatus transmits the synthesized voice signal over a standard telephone line to a unit including a conventional telephone speaker 26 and telephone microphone. User two, the party using the telephone at the other end, listens to a synthesized voice, but user one listens to the actual voice of user two with the telephone speaker, unless user two is also using a system similar to that of user one. Handwritten text may also be used in the system by employing a computer with a character recognition program as an input. In such a case handwriting is converted into synthesized sound and inputted into the telephone microphone. The telephone system can be used by the hearing impaired without involving a third party human transcriber.

Claims

1. A communication system for conducting a telephone communication without speaking and/or hearing comprising:

a first communication terminal including, a telephone apparatus including a receiver for converting electronic signals to audio signals and a transmitter for converting audio signals to electronic signals, a text data input device including a first data input apparatus for generating a message in typed form and a second data input apparatus for generating a message in handwritten text form, and

a text to speech conversion means connected to said text data input device for converting said text of said message into synthesized speech signals,

wherein said first data input apparatus includes a plurality of single input keys, each input key representing a separate entire group of a plurality of selected words and phrases, and wherein said conversion means includes means for storing said words and phrases in the form of synthesized speech signals, and wherein said synthesized speech signals representing said message including said words and phrases are transmitted by said transmitter over a communication link in response to the actuation of said single input elements of said data input device;

a second communication terminal including speech to text conversion means connected to said text to speech conversion means of said first communication terminal by said communication link, wherein said speech to text conversion means is responsive to said speech signals from said text to speech conversion means for converting said speech signals to text signals,

and a receiving means connected to said speech to text conversion means for receiving said text signals and providing a display of said text signals.

2. A communication system according to claim 1 further including voice input means connected to said speech to text conversion means for providing voice input signals that are converted to text by said speech to text conversion means and transmitted to said text to speech conversion device by said communication link for converting said converted text signals to voice signals, and an audio receiver means connected to said text to speech conversion means for receiving said converted voice signals transmitted from said speech to text conversion means.

3. A communication system according to claim 1 wherein said second communication means further includes a telephone microphone means connected to said speech to text conversion device for providing telephone voice signals for conversion to text signals, said text signals being transmitted to said text to speech conversion means of said first communication means by said communication link for conversion to speech signals, wherein said first communication means further includes a telephone receiver means connected to said text to speech conversion means for receiving said converted text signals transmitted from said speech to text conversion means of said second communication means.

4. A communication system according to claim 1 wherein said receiving means for providing a display of said text signals is an electronic e-mail message display means.

5. A communication system according to claim 1 wherein said first communication means further includes:

a speech to text conversion means, said speech to text conversion means responsive to speech signals for converting said speech signals to text signals,

and a receiving means connected to said speech to text conversion means for receiving said text signals and providing an electronic e-mail message display of text signals,

and wherein said second communication means further includes a text data input device for generating a message in typed or handwritten text form, and

a text to speech conversion means connected to said text data input device for converting said message into speech signals.

6. A communication system according to claim 1 wherein said first communication terminal further includes a pager sender means for providing paging signals to said text to speech conversion means.