Programmable dialer system

• US 4,882,750 A
• Filed: 03/23/1988
• Issued: 11/21/1989
• Est. Priority Date: 03/23/1988
• Status: Expired due to Term

• Current Assignee: Daniel A. Henderson
• Original Assignee: Daniel A. Henderson
• Inventors: Henderson, Daniel A., Mostyn, William T. Jr.
• Primary Examiner(s): Dwyer, James L.
• Application Number:
  US07/172,137
• Time in Patent Office: 608 Days
• Field of Search: 379/354, 379/355, 379/356, 379/357, 379/358, 379/359, 379/216, 379/40
• US Class Current: 379/355.06
• CPC Class Codes: H04M 1/275 implemented by means of portable electronic directories

Abstract

A telephone dialer system consists of a programming unit, and a portable telephone dialer unit for producing a selected sequence of dual tone modulated frequency dialing tones, adapted to be programmed by the programming unit when said portable telephone dialer is releasably electrically coupled to said programming unit. The portable telephone dialer has a case, a reprogrammable memory, a programming interface, a speaker, a battery, a dual tone modulated frequency signal generating integrated circuit chip, and a single bi-state switch operable from the exterior of the case.

Claims

1. A portable telephone dialer for producing a sequence of dual tone modulated frequencies corresponding to a telephone number during a dialing mode adapted to be preprogrammed with a telephone number by a programming unit having a plurality of programming probes during a programming mode, comprising:

a case having at least one surface for substantially enclosing a small volume;

a dual tone modulated frequency generating integrated circuit, disposed within said case having last number redial capability and at least one redial input contact for actuating said last number redial capability, said dual tone modulated frequency generating integrated circuit including a reprogrammable memory of the type capable of storing a sequence of digits, and a signal generator for producing a sequence of dual tone modulated frequency signals corresponding to said sequence of digits stored in said memory;

a programming interface means, electrically coupled to said reprogrammable memory, for releasably electrically coupling said reprogrammable memory with said plurality of programming probes of said programming unit during said programming mode;

an audiofrequency output means coupled to said signal generator for producing a sequence of audible audiofrequency signals corresponding to said sequence of dual tone modulated frequency signals produced by said signal generator during said dialing mode;

at least one battery disposed within said case and electrically coupled to said reprogrammable memory means, said signal generator, and said audiofrequency output means, for providing power to said memory means, said signal generator, and said audiofrequency output means; and

a single bi-state, switch electrically coupled to said at least one redial input contact and operable from the exterior of said case for activating said last number redial capability and causing said signal generator to produce said sequence of dual tone modulated frequency signals corresponding to said digits stored in said preprogrammed memory wherein, subsequent to programming, said portable telephone dialer is operable exclusively through said last number redial capability, restricting said portable telephone dialer to dialing said sequence of digits stored in said reprogrammable memory.

2. An apparatus according to claim 1 wherein said signal means directly drives said audiofrequency output means.

3. An apparatus according to claim 1 wherein said memory means and said signal means are disposed on a single integrated circuit.

4. An apparatus according to claim 1 wherein said case has at least one substantially planar surface adapted to receive advertising material.

5. A portable telephone dialer for producing a sequence of dual tone modulated frequencies corresponding to a telephone number during a dialing mode adapted to be preprogrammed with a telephone number by a programming unit having a plurality of programming probes during a programming mode, comprising:

a case having at least one surface for substantially enclosing a small volume;

a plurality of programming ports disposed on said at least one surface of said case for allowing the insertion of said plurality of programming probes into said volume substantially enclosed by said case during said programming mode;

a circuit board disposed within said case having a plurality of conductive pads carried in close proximity and alignment with said plurality of programming ports for releasably electrically coupling with said programming probes during said programming mode;

a dual tone modulated frequency generating integrated circuit having last number redial capability, mounted on said circuit board and having a plurality of input contacts electrically coupled to said plurality of conductive pads, at least one redial input contact for actuating said last number redial capability, said dual tone modulated frequency generating integrated circuit being of the type having an internal, programmable, and reprogrammable memory of the type capable of storing a single telephone number consisting of at least seven digits, and a signal generator for producing a sequence of dual tone modulated frequency signals corresponding to said telephone number stored in said memory, wherein said reprogrammable memory means is preprogrammed by said programming unit during said programming mode while remaining substantially enclosed within said case;

audiofrequency output means carried at least in part by said case and electrically coupled to said dual tone modulated frequency generating integrated circuit for producing a sequence of audible dual tone modulated frequency signals corresponding to said telephone number;

at least one battery disposed within said case and electrically coupled and providing power to said dual tone modulated frequency generating integrated circuit and said audiofrequency output means; and

a single, bi-state switch electrically coupled to said at least one redial input contact and operable from the exterior of said case for activating said last number redial capability of said dual tone modulated integrated circuit to produce dual tone modulated frequency signals corresponding to said telephone number stored in said memory during said programming mode, wherein subsequent to programming said portable telephone dialer is operable exclusively through said last number redial capability, restricting said portable telephone dialer to dialing said single telephone number.

6. An apparatus according to claim 5 wherein said case has at least one substantially planar surface adapted to receive advertising material.

7. An apparatus according to claim 5 wherein said dual tone modulated frequency generating circuit directly drives said audiofrequency output means.

8. A telephone dialer system, comprising:

(a) a portable telephone dialer, including;

a case having at least one surface for substantially enclosing a small volume;

a dual tone modulated frequency generating integrated circuit having last number redial capability and at least one redial input contact for actuating said last number redial capability, including a reprogrammable memory means for storing a selected sequence of digits and a signal means for producing a sequence of dual tone modulated frequency signals;

wherein said reprogrammable memory means is disposed within said case for storing a selected sequence of digits during a programming mode, said digits constituting at least one telephone number and

wherein said signal means is disposed within said case and electrically coupled to said reprogrammable memory means, for producing a sequence of dual tone modulated frequency signals corresponding to at least a subset of said digits stored in said reprogrammable memory means during a dialing mode;

an audiofrequency output means electrically coupled to said signal means for producing a sequence of audiofrequency signals corresponding to said sequence of dual tone modulated frequency signals produced by said signal means during said dialing mode;

at least one battery disposed within said case, electrically coupled and providing power to said reprogrammable memory means, said signal means, and said audiofrequency output means;

switch means electrically coupled to said at least one redial input and operable from the exterior of said case for activating said last number redial capability to cause said signal means to produce said sequence of dual tone modulated frequency signals during said dialing mode corresponding to said at least one subset of said selected digits stored in said reprogrammable memory means and for causing said audiofrequency output means to produce a sequence of audible audiofrequency dual tone modulated frequency dialing tones corresponding to at least one subset of said selected digits stored in said reprogrammable memory means;

(b) a programming unit, including;

programming means for programming said reprogrammable memory means with said selected sequence of digits during said programming mode; and

means for releasably electrically coupling said reprogrammable memory means and said programming means only during said programming mode and for decoupling said reprogrammable memory means from said programming means subsequent to the programming of said sequence of digits stored in said reprogrammable memory means;

(c) wherein, subsequent to programming, said portable telephone dialer is operable exclusively through said last number redial capability, restricting said portable telephone dialer to dialing only digits stored in said reprogrammable memory during said programming mode.

9. An apparatus according to claim 8 wherein said case has at least one substantially planar surface adapted to receive advertising material.

10. An apparatus according to claim 8 wherein said reprogrammable memory means and said signal means are disposed on a single integrated circuit.

11. An apparatus according to claim 8 wherein said signal means directly drives said audiofrequency output means.

12. A telephone dialer system according to claim 8, further comprising:

means for examining the content of said reprogrammable memory means subsequent to the programming of said memory means by said programming means; and

a means for determining if said reprogrammable memory means has been erroneously programmed with a sequence of digits that differ from said selected sequence of digits.

13. A telephone dialer system according to claim 8, further comprising:

means for testing the coordinated operation of said reprogrammable memory means, said signal means, and said audiofrequency output means subsequent to the programming of said reprogrammable memory means by said programming means.

14. A telephone dialer system according to claim 8, wherein said programming means comprises:

a numeric key pad operable during said programming mode for entering said selected sequence of digits;

a microcomputer having a memory for storing said selected sequence of digits entered on said numeric keypad;

a display means for displaying said selected sequence of digits entered on said numeric keypad and stored in said memory of said microcomputer; and

simulator means for electrically simulating the operation of a telephone keypad in a sequence corresponding to said selected sequence of digits stored in said memory of said microcomputer, wherein the operation of said simulator means during said programming mode is controlled by said microcomputer.

15. A telephone dialer system, comprising:

a case having at least one surface for substantially enclosing a small volume;

reprogrammable memory means disposed within said case for storing a selected sequence of digits during a programming mode, said digits constituting a single selected telephone number;

signal means disposed within said case electrically coupled to said reprogrammable memory means for producing a sequence of dual tone modulated frequency signals corresponding to said single selected telephone number stored in said reprogrammable memory means during a dialing mode;

an audiofrequency output means electrically coupled to said signal means for producing a sequence of audiofrequency signals corresponding to said sequence of dual tone modulated frequency signals produced by said signal means during said dialing mode;

at least one battery disposed within said case, electrically coupled and providing power to said reprogrammable memory means, said signal means, and said audiofrequency output means;

a single, bi-state switch operable from the exterior of said case for activating said signal means to produce said sequence of dual tone modulated frequency signals during said dialing mode corresponding to said digits in said reprogrammable memory means;

programming means for programming said reprogrammable memory means with said single selected telephone number during said programming mode; and

means for releasably electrically coupling said reprogrammable memory means and said programming means only during said programming mode and for decoupling said reprogrammable memory means from said programming means subsequent to the programming of said single selected telephone number in said reprogrammable memory means.

16. An apparatus according to claim 15 wherein said signal means directly drives said audiofrequency output means.

17. An apparatus according to claim 15 wherein said memory means and said signal means are disposed on a single integrated circuit.

18. An apparatus according to claim 15 wherein said case has at least one substantially planar surface adapted to receive advertising material.

19. A telephone dialer system according to claim 15 further comprising:

means for examining the content of said reprogrammable memory means subsequent to the programming of said memory means by said programming means; and

means for determining if said reprogrammable memory means has been erroneously programmed with a sequence of digits that differ from said selected sequence of digits.

20. A telephone dialer system according to claim 15, further comprising:

means for testing the coordinated operation of said reprogrammable memory means, said signal means, and said audiofrequency output means subsequent to the programming of said reprogrammable memory means by said programming means.

21. A telephone dialer system according to claim 15 wherein said programming means comprises:

a numeric key pad operable during said programming mode for entering said selected sequence of digits;

a microcomputer having a memory for storing said selected sequence of digits entered on said numeric keypad;

a display means for displaying said selected sequence of digits entered on said numeric keypad and stored in said memory of said microcomputer; and

simulator means for electrically simulating the operation of a telephone keypad in a sequence corresponding to said selected sequence of digits stored in said memory of said microcomputer, wherein the operation of said simulator means during said programming mode is controlled by said microcomputer.

22. A telephone dialer system, comprising:

a case having at least one surface for substantially enclosing a small volume;

reprogrammable memory means disposed within said case for storing a selected sequence of digits during a programming mode, said digits constituting at least one telephone number;

signal means disposed within said case electrically coupled to said reprogrammable memory means for producing a sequence of dual tone modulated frequency signals corresponding to said at least one telephone number stored in said reprogrammable memory means during a dialing mode;

an audiofrequency output means electrically coupled to said signal means for producing a sequence of audiofrequency signals corresponding to said sequence of dual tone modulated frequency signals produced by said signal means during said dialing mode;

at least one battery disposed within said case, electrically coupled and providing power to said reprogrammable memory means, said signal means, and said audiofrequency output means;

a single, bi-state switch operable from the exterior of said case for activating said signal means to produce said sequence of dual tone modulated frequency signals during said dialing mode corresponding to said digits in said reprogrammable memory means;

programming means for programming said reprogrammable memory means with said at least one telephone number during said programming mode; and

means for releasably electrically coupling said reprogrammable memory means and said programming means only during said programming mode.