Apparatus and method for telephone, intercom, and clock

• US 7,577,247 B1
• Filed: 10/20/2003
• Issued: 08/18/2009
• Est. Priority Date: 06/14/2000
• Status: Expired due to Term

• Current Assignee: Marvell Asia Pte Limited (Marvell Technology Group Limited)
• Original Assignee: Marvell International Limited (Marvell Technology Group Limited)
• Inventors: Sutardja, Sehat
• Primary Examiner(s): Gauthier; Gerald
• Application Number:
  US10/690,022
• Time in Patent Office: 2,129 Days
• Field of Search: 379/88.07, 379/374.01, 379/474.01, 375/222, 370/493, 700/94, 455/413
• US Class Current: 379/374.01
• CPC Class Codes: H04N 5/77 between a recording apparatus and a television camera
• CPC Class Codes: H04N 5/782 on tape
• CPC Class Codes: H04N 5/907 using static stores, e.g. storage tubes or semiconductor memories H04N5/91 takes precedence
• CPC Class Codes: H04N 9/8042 involving data reduction

Abstract

The invention features a telephone, intercom, and clock. The telephone comprises a receiver adapted to receive a signal representing encoded first voice data; a processor comprising a media access controller adapted to obtain the encoded first voice data from the signal, and a digital signal processor adapted to decode the first voice data obtained by the media access controller; an output circuit; a digital-to-analog converter adapted to convert the first voice data decoded by the digital signal processor to a first analog signal, wherein the first analog signal is output to the output circuit; an input circuit; an analog-to-digital converter adapted to receive a second analog signal from the input circuit, and to convert the second analog signal to second voice data; wherein the digital signal processor is further adapted to encode the second voice data; and a transmitter adapted to transmit signals representing the encoded second voice data.

Claims

1. A telephone comprising:

a receiver adapted to receive a signal representing encoded first voice data;

a processor comprising

a media access controller adapted to obtain the encoded first voice data from the signal, and

a digital signal processor adapted to decode the encoded first voice data obtained by the media access controller;

an output circuit;

a digital-to-analog converter adapted to convert the first voice data decoded by the digital signal processor to a first analog signal, wherein the first analog signal is output to the output circuit;

an input circuit;

an analog-to-digital converter adapted to receive a second analog signal from the input circuit, and to convert the second analog signal to second voice data;

wherein the digital signal processor is further adapted to encode the second voice data; and

a transmitter adapted to transmit signals representing the encoded second voice data.

2. The telephone of claim 1:

wherein the encoded first voice data is decoded by a process that decompresses the encoded first voice data; and

wherein the second voice data is encoded by a process that compresses the second voice data.

3. The telephone of claim 1, further comprising:

a vocoder adapted to decode the encoded first voice data and to encode the second voice data.

4. The telephone of claim 3:

wherein the digital signal processor is further adapted to determine a code of the encoded first voice data obtained by the media access controller; and

wherein the vocoder is further adapted to decode the encoded first voice data in accordance with the determined code.

5. The telephone of claim 1, further comprising:

a display;

wherein the receiver is further adapted to receive a signal representing information describing a sender of the first voice data; and

wherein the processor is further adapted to cause the display to display the information describing the sender of the first voice data.

6. The telephone of claim 1:

wherein the receiver is further adapted to receive a signal representing information describing a sender of the first voice data; and

wherein the processor is further adapted to reject the first voice data when the information describing the sender of the first voice data meets predetermined criteria.

7. The telephone of claim 1, further comprising:

an echo cancellation circuit.

8. The telephone of claim 1, further comprising:

a telephone call indicator adapted to manifest a call indication when the transmitter receives a signal representing an incoming telephone call.

9. The telephone of claim 1, further comprising:

a storage device;

wherein the processor is further adapted to answer an incoming telephone call, and to store the encoded first voice data in the storage device.

10. The telephone of claim 9, further comprising:

a voicemail key;

wherein, in response to operation of the voicemail key,

the digital signal processor is further adapted to decode the encoded first voice data stored in the storage device, and

the processor is further adapted to send the decoded second voice data to the output circuit.

11. The telephone of claim 1:

wherein the receiver is further adapted to receive a telephone call signal representing an incoming telephone call, the telephone call signal comprising a destination telephone number;

wherein the processor is further adapted to select a further telephone based on the destination telephone number; and

wherein the transmitter is further adapted to send a new call signal to the further telephone.

12. The telephone of claim 11:

wherein the receiver is further adapted to receive an answer signal from the further telephone in response to the new call signal; and

wherein in response to the answer signal,

the receiver receives encoded third voice data from the further telephone and encoded fourth voice data from a sender of the telephone call signal, and

the transmitter sends the encoded fourth voice data to the sender of the telephone call signal and sends the encoded third voice data to the further telephone.

13. The telephone of claim 1, wherein the receiver is a wireless receiver.

14. The telephone of claim 1, wherein the transmitter is a wireless transmitter.

15. The telephone of claim 1, wherein the telephone complies with a standard selected from the group consisting of:

IEEE 802.11;

IEEE 802.11a;

IEEE 802.11b;

IEEE 802.11g;

IEEE 802.11h; and

IEEE 802.11i.

16. A telephone comprising:

means for receiving a signal representing encoded first voice data;

processor means for processing the signal comprising

media access controller means for obtaining the encoded first voice data from the signal, and

digital signal processor means for decoding the first voice data obtained by the media access controller means;

digital-to-analog converter means for converting the encoded first voice data decoded by the digital signal processor means to a first analog signal, wherein the first analog signal is output to an output circuit;

analog-to-digital converter means for receiving a second analog signal from an input circuit, and for converting the second analog signal to second voice data; and

wherein the digital signal processor is further adapted to encode the second voice data; and

transmitter means for transmitting signals representing the encoded second voice data.

17. The telephone of claim 16:

wherein the encoded first voice data is decoded by a process that decompresses the encoded first voice data; and

wherein the second voice data is encoded by a process that compresses the second voice data.

18. The telephone of claim 16, further comprising:

vocoder means for decoding the encoded first voice data and for encoding the second voice data.

19. The telephone of claim 18:

wherein the digital signal processor means determines a code of the encoded first voice data obtained by the media access controller means; and

wherein the vocoder means decodes the encoded first voice data in accordance with the determined code.

20. The telephone of claim 16, wherein the receiver means receives a signal representing information describing a sender of the first voice data, the telephone further comprising:

display means for displaying the information describing the sender of the first voice data.

21. The telephone of claim 16:

wherein the receiver means receives a signal representing information describing a sender of the first voice data; and

wherein the processor means rejects the first voice data when the information describing the sender of the first voice data meets predetermined criteria.

22. The telephone of claim 16, further comprising:

echo cancellation means for canceling echoes.

23. The telephone of claim 16, further comprising:

telephone call indicator means for manifesting a call indication when the transmitter means receives a signal representing an incoming telephone call.

24. The telephone of claim 16, wherein the processor is further adapted to answer an incoming telephone call, further comprising:

storage device means for storing the encoded first voice data.

25. The telephone of claim 24, further comprising:

voicemail key means;

wherein, in response to operation of the voicemail key means,

the digital signal processor means decodes the encoded first voice data stored in the storage device means, and

the processor means sends the decoded second voice data to the output circuit.

26. The telephone of claim 16:

wherein the receiver means receives a telephone call signal representing an incoming telephone call, the telephone call signal comprising a destination telephone number;

wherein the processor means selects a further telephone based on the destination telephone number; and

wherein the transmitter means sends a new call signal to the further telephone.

27. The telephone of claim 26:

wherein the receiver means receives an answer signal from the further telephone in response to the new call signal; and

wherein in response to the answer signal,

the receiver means receives encoded third voice data from the further telephone and encoded fourth voice data from a sender of the telephone call signal, and

the transmitter means sends the encoded fourth voice data to the sender of the telephone call signal and sends the encoded third voice data to the further telephone.

28. The telephone of claim 16, wherein the receiver means is wireless.

29. The telephone of claim 16, wherein the transmitter means is wireless.

30. The telephone of claim 16, wherein the telephone complies with a standard selected from the group consisting of:

IEEE 802.11;

IEEE 802.11a;

IEEE 802.11b;

IEEE 802.11g;

IEEE 802.11h; and

IEEE 802.11i.