Electronic business telephone

• US 3,932,709 A
• Filed: 03/07/1974
• Issued: 01/13/1976
• Est. Priority Date: 04/16/1973
• Status: Expired due to Term

• Current Assignee: AT&T, Inc.
• Original Assignee: General Teletronics Incorporated
• Inventors: Hoff, Don G., Young, Patrick
• Primary Examiner(s): Claffy, Kathleen H.
• Assistant Examiner(s): Stellar, George G.
• Application Number:
  US05/449,155
• Time in Patent Office: 677 Days
• Field of Search: 179/2 DP, 179/2 CA, 179/2 A, 179/90 B, 179/90 R, 179/90 K, 179/84 VF, 235/156, 235/166, 235/172
• US Class Current: 379/93.23
• CPC Class Codes: G06F 15/02 manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
• CPC Class Codes: H04M 1/2725 using electronic memories
• CPC Class Codes: H04M 11/06 Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
• CPC Class Codes: H04M 11/066 Telephone sets adapted for data transmision

Abstract

An electronic business telephone for the transmission and receipt of voice messages and digital data. The electronic telephone uses MOS/LSI circuitry to store and visually display telephone numbers or other numeric data and includes the capability of performing local arithmetic computation. In telephone mode, after keyboard entry the number to be dialed is stored and visually displayed for pre-dial verification in articulated format with the area code, prefix and suffix suitably spaced for ease of reading. If the number is busy, the displayed telephone number can be entered into a telephone memory and the memorized number subsequently recalled on demand for automatic redial. In data terminal mode, digital numeric information is displayed in non-articulated or compressed format for visual verification prior to transmission and is exchanged between any two electronic telephone systems, or through proper interfacing, from an electronic telephone to a remote computer. In computation mode, the keyboard and display are used in conjunction with an arithmetic processor and an accumulating memory which may be used to perform calculations during telephone conversation if desired. The various operating modes are supervised and coordinated by a control center module in the form of a MOS/LSI BCD microprocessor which performs telephonic and data alignment functions. The Electronics Business Telephone is also shown as the central supervising unit within a total communications terminal system.

Claims

1. An electronic communications terminal comprising:

a. keyboard means for entry of numeric information and function control commands;

b. displaya register means responsive to said keyboard means for buffer storage of so entered numeric information;

c. display means responsive to said display register means for visual presentation of so stored numeric information;

d. automatic dialing means associated with said display register means for generation of telephonic call placement signals representing said stored numeric information under control of at least one said function control commands indicating that said communications terminal is operating in telephone mode;

e. arithmetic computation means associated with said display register means for performing calculations involving said stored numeric information and for supplying the results of said calculations to said display register means for visual presentation under control of at least one of said function control commands indicating that said communications terminal is operating in computation mode; and

f. articulation means associated with said display register means and said display means for causing said stored numeric information to be displayed in a plurality of spaced segments only when the terminal is operating in the telephone mode.

2. The electronic communications terminal of claim 1 further comprising data transmission means associated with said display register means for generating digitally coded signals representing said stored numeric information and transmitting said signals to a remote location for processing under control of at least one of said function control commands indicating that said communications terminal is operating in data transmission mode.

3. The electronic communications terminal of claim 1 further comprising memory means communicating with said display register means for receipt of the contents thereof under control of at least one of said function control commands for indeterminate storage of said contents independent of said display means and for return of said contents to said display register means under control of another of said function control commannds for presentation to said display means.

4. An electronic communication terminal comprising:

a. keyboard means for entry of numeric information and function control commands;

b. memory means responsive to said keyboard means for storing so entered numeric information;

c. display means responsive to said memory means for visually displaying so stored numeric information;

d. automatic dialing means associated with said memory means for generating telephonic call placement signals representing said stored numeric information, said automatic dialing means being responsive to at least one of said function control commands indicating that said communication terminal is operating in telephone mode;

e. data transmission means associated with said memory means for generating digitally coded signals representing said stored numeric information and transmitting said signals to a remote location for processing, said data transmission means being responsive to at least one of said function control commands indicating that said communication terminal is operating in data transmission mode;

f. arithmetic computation means associated with said memory means for performing calculations using said stored numeric information and for supplying the results of said calculations to said display means for visual presentation, said arithmetic computation means being responsive to at least one of said function control commands indicating that said communication terminal is operating in computation mode;

g. articulation means associated with said memeory means and said display means for causing said stored numeric information to be displayed in a plurality of segments, said articulation means being operated only when said communication terminal is operating in the telephone mode; and

6. The electronic communications terminal of claim 4 wherein said arithmetic computation means further includes means for accumulating calculation results in said memory means under control of at least one of said function control commands.

7. The electronic communications terminal of claim 4 in combination with remotely located computer means and means interconnecting said remote computer and said communications terminal.

8. The communications terminal of claim 4 in combination with credit card reader means and means interconnecting said credit card reader means and said communications terminal.

9. The electronic communications terminal of claim 4 wherein said articulation means further comprises logic means for analyzing said stored numeric information and for selectively displaying at least a portion thereof in spaced segments on said display panel.

10. The electronic communications terminal of claim 8 wherein said logic means further includes means for insertion of blanks between said segments as the individual digits thereof are entered from said keyboard and simultaneously presented on said display panel.

11. The electronics communications terminal of claim 8 wherein said logic means further includes means for suppressing from presentation on said display panel predetermined operator access and exchange access digits leading said entered numeric information.

12. The electronics communications terminal of claim 8 wherein said logic means further includes editing means for backspace correction of numeric information presented on said display panel.

14. Apparatus according to claim 12 further comprising means for insuring presence of a dial tone after processing of said access digit code before further processing of said telephonic call placement signals occurs.

16. The electronic communications terminal of claim 14 wherein said function control means further comprises digit blanking circuit means for suppressing selected ones of said digit representing signals received from said encoder circuit means to form a modified digit sequence based on said keyboard-entered numerical information under at least partial control of said keyobard-entered function control commands.

5. h. control means associated with said keyboard display means, memory means, data transmission means and arithmetic computation means responsive to said commands for controlling and coordinating said operating modes.

13. An electronic communications terminal comprising:

a. keyboard means for entry of numeric information and function control commands;

b. memory means responsive to said keyboard means for storing so entered numeric information;

c. display means responsive to said memory means for visually displaying so stored numeric information;

d. automatic dialing means associated with said memory means for generating telephonic call placement signals representing said stored numeric information, said automatic dialing means being responsive to at least one of said function control commands indicating that said communication terminal is operating in telephone mode;

e. data transmission means associated with said memory means for generating digitally coded signals representing said stored numeric information and transmitting said signals to a remote location for processing, said data transmission means being responsive to at least one of said function control commands indicating that said communication terminal is operating in data transmission mode;

f. arithmetic computation means associated with said memory means for performing calculations using said stored numeric information and for supplying the results of said calculations to said display means for visual presentation, said arithmetic computation means being responsive to at least one of said function control commands indicating that said communication terminal is operating in computation mode; and

g. control means associated with said keyboard display means, memory means, data transmission means and arithmetic computation means responsive to said function control commands for controlling and coordinating said operating modes, said control means further comprising means for automatically generating signals representing an access digit code for combination with said telephonic call placement signals under at least partial control of said function control commands.

15. An electronic communication terminal comprising:

a. keyboard means for entry of numeric information and function control commands;

b. memory means responsive to said keyboard means for storing so entered numeric information;

c. display means responsive to said memory means for visually displaying so stored numeric information;

d. automatic dialing means associated with said memory means for generating telephonic call placement signals representing said stored numeric information, said automatic dialing means being responsive to at least one of said function control commands indicating that said communication terminal is operating in telephone mode;

e. data transmission means associated with said memory means for generating digitally coded signals representing said stored numeric information and transmitting said signals to a remote location for processing, said data transmission means being responsive to at least one of said function control commands indicating that said communication terminal is operating in data transmission mode;

f. arithmetic computation means associated with said memory means for performing calculations using said stored numeric information and for supplying the results of said calculations to said display means for visual presentation, said arithmetic computation means being responsive to at least one of said function control commands indicating that said communication terminal is operating in computation mode;

g. control means associated with said keyboard, display means, memory means, data transmission means and arithmetic computation means responsive to said commands for controlling and coordinating said operating modes;

said control means further comprising encoder circuit means responsive to digit-representing signals characteristic of said keyboard-entered numeric information for converting said signals into binary-coded decimal form for analysis and modification; and

h. data-handling circuit means responsive to said encoder means for converting said binary coded decimal signals received therefrom into modified digit signals including automatic dialing signals under at least partial control of said keyboard-entered function control commands; and

said data handling circuit means further comprising;

rotary formatter circuit means for transforming binary-coded decimal signals into rotary-dial pulse train signals compatible with external common carrier telephone lines;

touch-tone encoder circuit means for transforming binary-coded decimal signals into frequency encoded signals compatible with external common carrier telephone lines;

function control circuit means responsive to said encoder means for receiving said binary-coded decimal digitrepresenting signals therefrom and directing said signals to one of said rotary formatter circuit means and said Touch-tone encoder means under at least partial control of said keyboard-entered function control commands; and

said function control means further comprising digit insertion circuit means for generating binary-coded decimal modifier digit signals and combining said modifier digit signals with said digit representing signals received from said encoder circuit means to form a modified digit sequence based on said keyboard-entered numerical information under at least partial control of said keyboard-entered function control commands and supplying said modified digit sequence to one of said rotary formatter circuit means and said Touch-tone encoder circuit means.

17. An electronic communications terminal comprising:

a. keyboard means for entry of numeric information and function control commands;

b. display means responsive to said keyboard means for buffer storage of so entered numeric information;

c. display means responsive to said display register means for visual presentation of so stored numeric information;

d. automatic dialing means associated with said display register means for generation of telephonic call placement signals representing said stored numeric information under control of at least one of said function control commands indicating that said communications terminal is operating in telephone mode;

e. articulation means associated with said display register means and said display means for causing said stored numeric information to be displayed in a plurality of spaced segments; and

f. control means associated with said keyboard, display register and automatic dialing means responsive to said function control commands for controlling and coordinating said operating modes, said control means further including means for automatically generating signals representing an access digit code for combination with said telephonic call placement signals under at least partial control of said function control commands.

18. An electronic communications terminal comprising:

a. keyboard means for entry of numeric information and function control commands;

b. display register means responsive to said keyboard means for buffer storage of so entered numeric information;

c. display means responsive to said display register means for visual presentation of so stored numeric information;

d. automatic dialing means associated with said display register means for generation of telephonic call placement signals representing said stored numeric information under control of at least one of said function control commands indicating that said communications terminal is operating in telephone mode;

e. articulation means associated with said display register means and said display means for causing said stored numeric information to be displayed in a plurality of spaced segments only when the terminal is operating in its telephone mode; and

f. control means associated with said keyboard, display register means, automatic dialing means responsive to said function control commands for controlling and coordinating said operating modes, said control means further including means for automatically generating signals representing an access digit code for combination with said telephonic call placement signals under at least partial control of said function control commands.