Device and method for ring tone output

• US 20050119033A1
• Filed: 08/05/2004
• Published: 06/02/2005
• Est. Priority Date: 08/05/2003
• Status: Active Grant

• Current Assignee: BenQ Corporation (Qisda Corporation)
• Original Assignee: BenQ Corporation (Qisda Corporation)
• Inventors: Fan, Chen-Huang, Du, Ben-Chuan, Cheng, Yi-Wen
• Granted Patent: US 7,295,858 B2
• Time in Patent Office: Days
• US Class Current: 455/567
• CPC Class Codes: H04M 19/04 the ringing-current being generated at the substations

Abstract

A device for ring tone output. The device comprises a phone speaker, a ringing speaker, a receiver, a switching device and a micro-controller. The receiver acquires audio data via a traffic channel. The audio data comprises a ring tone. The switching device receives the ring tone and selectively transmits the ring tone to the phone speaker and the ringing speaker. The micro-controller directs the switching device to transmit the ring tone to the ringing speaker.

Claims

1. A mobile unit for communicating with a base station, the base station transmitting a traffic channel, the mobile unit comprising:

a phone speaker;

a ringing speaker;

a receiver configured to receive an audio data via the traffic channel;

a switching device coupled to the receiver, configured to receive the audio data and selectively transmit the audio data to the phone speaker and the ringing speaker; and

a micro-controller coupled to the switching device, configured to control the switching device to transmit a ring tone to the ringing speaker, when the audio data including the ring tone.

2. The mobile unit as claimed in claim 1, wherein the receiver further comprises:

a demodulator configured to receive the audio data via the traffic channel and demodulate the audio data to digital data;

a digital signal processor coupled to the demodulator, configured to process the digital data; and

a digital-to-analog converter (DAC) coupled to the digital signal processor, configured to receive and convert output of the digital signal processor to the ring tone.

3. The mobile unit as claimed in claim 1, wherein the receiver further comprises a scratch memory, coupling to the digital signal processor, configured to store the output of the digital signal processor temporarily.

4. The mobile unit as claimed in claim 3, wherein the digital signal processor repeatedly refreshes the digital data in the scratch memory until a signal from a function key is detected.

5. The mobile unit as claimed in claim 3, wherein the digital signal processor erases the digital data of the scratch memory after detecting a signal from a function key.

6. The mobile unit as claimed in claim 1, is a cellular phone.

7. The mobile unit as claimed in claim 1, further comprises a function key, wherein the micro-controller directs the switching device to transmit the audio data to the phone speaker after detecting a signal from the function key.

8. The mobile unit as claimed in claim 7, wherein the micro-controller transmits a connection signal via a control channel after detecting a press signal from the function key.

9. A method for ring tone output in a wireless telephony network comprising a base station system and a mobile station, the base station system transmitting an audio data via a traffic channel, the mobile station having a phone speaker and a ringing speaker, the method comprising the steps of:

(a) the base station system transmitting audio data via a traffic channel, wherein the audio data comprises a ring tone;

(b) outputting a ring tone to the ringing speaker, when the audio data including the ring tone; and

(c) transmitting the audio data to the phone speaker after detecting a press signal from a function key of the mobile station.

10. The method as claimed in claim 9, wherein the mobile station is a cellular phone.

11. The method as claimed in claim 9, wherein the method further comprises the steps of:

(d) generating the press signal; and

(e) transmitting a connection signal to the base station system via a control channel.

12. A method for a ring tone output utilized in a mobile station, comprising the steps of:

(a) receiving audio data via a traffic channel;

(b) converting the audio data to digital data;

(c) acquiring a ring tone from the audio data, when the audio data including the ring tone; and

(d) transmitting the ring tone to a ringing speaker of the mobile station.

13. The method as claimed in claim 12, wherein the mobile station is a cellular phone.

14. The method as claimed in claim 12, wherein the method further comprises the steps of:

(d) completing the ring tone transmission after detecting a press signal from a function key of the mobile station; and

(e) transmitting a connection signal to a base station system via a control channel.