Multiple format secure voice apparatus for communication handsets

• US 6,782,102 B2
• Filed: 12/21/2000
• Issued: 08/24/2004
• Est. Priority Date: 12/21/2000
• Status: Expired due to Fees

• Current Assignee: CDC Propriete Intellectuelle
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Blanchard, Scott D., Vanden Heuvel, Dean P.
• Primary Examiner(s): HUA, LY
• Application Number:
  US09/746,385
• Publication Number:
  US 20020080966A1
• Time in Patent Office: 1,342 Days
• Field of Search: 713/153, 380/270, 380/271, 380/250, 380/247, 380/52, 380/29, 380/28, 348/14.01, 705/1
• US Class Current: 380/270
• CPC Class Codes: H04K 1/00 Secret communication
• CPC Class Codes: H04M 1/0256 wherein the modules are operable in the detached state, e.g. one module for the user interface and one module for the transceiver
• CPC Class Codes: H04M 1/72403 with means for local support of applications that increase the functionality

Abstract

Multiple format secure voice apparatus for communication handsets includes a core unit with a speaker, a microphone, a keypad, and a display. The core unit also includes an audio circuit coupled to the speaker and the microphone, an encryption/decryption element coupled to the audio circuit, a coder/decoder element coupled to the audio circuit and the encryption/decryption element, and a control element coupled to the keypad, the display, the audio circuit, the encryption/decryption element, and the coder/decoder element. A standard interface coupling is connected to an audio I/O terminal, a data I/O terminal of the coder/decoder element, and a control I/O terminal of the control element. A mating standard interface coupling mates with the standard interface coupling of the core unit and is coupled to the mating standard interface coupling.

Claims

1. Multiple format secure voice apparatus for communication handsets comprising:

a front end including operator interface elements, an audio circuit coupled to at least one of the operator interface elements and having an audio I/O terminal, an encryption/decryption element coupled to the audio circuit, a coder/decoder element coupled to the audio circuit and the encryption/decryption element, the coder/decoder element having a data I/O terminal, and a control element coupled to at least one operator interface element, the audio circuit, the encryption/decryption element, and the coder/decoder element and having a control I/O terminal; and

a standard interface coupling connected to the audio I/O terminal, the data I/O terminal, and the control I/O terminal, the standard interface coupling being designed to mate with a standard interface coupling on a handheld communication device to operatively couple the front end to a transceiver of the handheld communication device.

2. Multiple format secure voice apparatus for communication handsets as claimed in claim 1 wherein the operator interface elements of the front end include at least one of a speaker, a microphone, a keypad, and a display.

3. Multiple format secure voice apparatus for communication handsets as claimed in claim 1 wherein the coder/decoder element includes one of a vocoder ACELP, VCELP, AMBE, and IMBE.

4. Multiple format secure voice apparatus for communication handsets as claimed in claim 1 wherein the audio circuit includes one of an A-LAW PCM CODEC and a μ

-LAW PCM CODEC.

5. Multiple format secure voice apparatus for communication handsets as claimed in claim 1 wherein the coder/decoder element also has a data input terminal for receiving data from an external wired source.

6. Multiple format secure voice apparatus and communication handset comprising:

a core unit comprising;

a front end including operator interface elements;

an audio circuit coupled to at least one of the operator interface elements and having an audio I/O terminal;

an encryption/decryption element coupled to the audio circuit;

a coder/decoder element coupled to the audio circuit and the encryption/decryption element, the coder/decoder element having a data I/O terminal;

a control element coupled to at least one operator interface element, the audio circuit, the encryption/decryption element, and the coder/decoder element and having a control I/O terminal; and

a standard interface coupling connected to the audio I/O terminal, the data I/O terminal, and the control I/O terminal; and

a replaceable unit including a standard interface coupling designed to mate with the standard interface coupling of the core unit and a transceiver coupled to the standard interface coupling of the replaceable unit.

7. Multiple format secure voice apparatus and communication handset as claimed in claim 6 wherein the replaceable unit includes one of a wireless device and a wired device.

8. Multiple format secure voice apparatus and communication handset as claimed in claim 7 wherein the wireless device includes one of a cellular telephone, a remote telephone, a two-way radio, an AMPS, a GSM (a European TDMA cellular phone), an Iridium, an IS95 (CDMA), and a Tetra (a European terrestrial trunked radio), and the wired device includes a V.34 MODEM.

9. Multiple format secure voice apparatus and communication handset as claimed in claim 6 wherein the operator interface elements of the front end include at least one of a speaker, a microphone, a keypad, and a display.

10. Multiple format secure voice apparatus and communication handset as claimed in claim 6 wherein the coder/decoder element includes one of a vocoder, ACELP, VCELP, AMBE, and IMBE.

11. Multiple format secure voice apparatus and communication handset as claimed in claim 6 wherein the audio circuit includes one of an A-LAW PCM CODEC and a μ

-LAW PCM CODEC.

12. Multiple format secure voice apparatus and communication handset as claimed in claim 6 wherein the coder/decoder element also has a data input terminal for receiving data from an external wired source.

13. Multiple format secure voice apparatus and communication handset as claimed in claim 6 further including at least two different replaceable units, each including a standard interface coupling designed to mate with the standard interface coupling of the core unit.

14. Multiple format secure voice apparatus and communication handset comprising:

a core unit comprising;

operator interface elements including a speaker, a microphone, a keypad, and a display;

an audio circuit coupled to the speaker and the microphone and having an audio I/O terminal;

an encryption/decryption element coupled to the audio circuit;

a coder/decoder element coupled to the audio circuit and the encryption/decryption element, the coder/decoder element having a data I/O terminal;

a control element coupled to the keypad and the display, the audio circuit, the encryption/decryption element, and the coder/decoder element and having a control I/O terminal;

a standard interface coupling connected to the audio I/O terminal, the data I/O terminal, and the control I/O terminal;

a mating standard interface coupling designed to mate with the standard interface coupling of the core unit; and

a transceiver coupled to the mating standard interface coupling.

15. Multiple format secure voice apparatus and communication handset as claimed in claim 14 wherein the mating standard interface coupling and the transceiver are included in one of a wireless device and a wired device.

16. Multiple format secure voice apparatus and communication handset as claimed in claim 15 wherein the wireless device includes one of a cellular telephone, a remote telephone, a two-way radio, an AMPS, a GSM (a European TDMA cellular phone), an Iridium, an IS95 (CDMA), and a Tetra (a European terrestrial trunked radio), and the wired device includes a V.34 MODEM.

17. Multiple format secure voice apparatus and communication handset as claimed in claim 14 wherein the coder/decoder element includes one of a vocoder ACELP, VCELP, AMBE, and IMBE.

18. Multiple format secure voice apparatus and communication handset as claimed in claim 17 wherein the audio circuit includes one of an A-LAW PCM CODEC and a μ

-LAW PCM CODEC.

19. Multiple format secure voice apparatus and communication handset as claimed in claim 17 wherein the coder/decoder element also has a data input terminal for receiving data from an external wired source.

20. Multiple format secure voice apparatus and communication handset as claimed in claim 14 further including at least two different transceivers, each having a mating standard interface coupling attached thereto and designed to mate with the standard interface coupling of the core unit.