Full-Duplex Wireless Voice Broadcasting Apparatus with Channel-Changing and Interference-Resistance

• US 20130051283A1
• Filed: 08/30/2011
• Published: 02/28/2013
• Est. Priority Date: 08/30/2011
• Status: Active Grant

• Current Assignee: National Chung-Shan Institute of Science and Technology
• Original Assignee: Chung-Shan Institute of Science & Technology Armaments Bureau MND (Government of The Republic of China)
• Inventors: Lee, Ming-Town, Hsu, Tung-Jung, Suen, Tain-Wen, Liao, Jen-Chi
• Granted Patent: US 8,542,614 B2
• Time in Patent Office: Days
• US Class Current: 370/277
• CPC Class Codes: H04B 1/56 with provision for simultaneous communication in two directions
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The present disclosure is a full-duplex wireless voice broadcasting apparatus. The apparatus is capable of channel-changing. Full-duplex (two-way) voice communication is achieved by using at least one receiving device and an emitting device. The receiving device has good mobility to be used as an emergent caller to the emitting device. The present disclosure has advantages in interference resistance, energy saving, short-distance emergent calling, and calling for help.

Claims

1. A full-duplex wireless voice broadcasting apparatus with channel-changing and interference-resistance, comprising

an emitting device 1, said emitting device 1 comprising

a first voice sampling/reconstructing unit 11;

a first local network unit 12, said first local network unit 12 being connected with said first voice sampling/reconstructing unit 11; and

an first operation unit 13, said first operation unit 13 being connected with said first local network unit 12,

wherein said emitting device 1 periodically emits data packages and said data packages contain data selected from a group consisting of voice data and non-voice data; and

at least one receiving device 2, said receiving device 2 comprising

a second voice sampling/reconstructing unit 21;

a second local network unit 22, said second local network unit 22 being connected with said second voice sampling/reconstructing unit 21; and

a second operation unit 23, said second operation unit 23 being connected with said second local network unit 22,

wherein, after being connected with said emitting device 1, said receiving device 2 receives said data packages; and

a standby status is maintained between said emitting device 1 and said receiving device 2.

2. The device according to claim 1,

wherein said first voice sampling/reconstructing unit 11 and said first local network unit 12 are mutually connected through a serial peripheral interface (SPI).

3. The device according to claim 1,

wherein said first local network unit 12 comprises

a first ZigBee module 121;

a power amplifier 122, said power amplifier 122 being connected with said first ZigBee module 121; and

a first radio frequency (RF) antenna 123, said first RF antenna 123 being connected with said power amplifier 122.

4. The device according to claim 3,

wherein said first ZigBee module 121 comprises

a first SPI buffer 1211;

a transferring buffer 1212;

a transferring package voice unit 1213; and

a first flash memory 1214.

5. The device according to claim 1,

wherein said first operation unit 13 comprises

a first indicating light 131;

a talk/mute button 132;

a first and second voice indicator 133;

a first power supply unit 134;

a first microphone connecting port 135; and

a first earphone connecting port 136.

6. The device according to claim 1,

wherein said second voice sampling/reconstructing unit 21 and said second local network unit 22 are mutually connected through an SPI.

7. The device according to claim 1,

wherein said second local network unit 22 comprises

a second ZigBee module 221 ;

and

a second RF antenna 222, said second RF antenna 222 being connected with said ZigBee module 221.

8. The device according to claim 1,

wherein said second ZigBee module 221 comprises

a second SPI buffer 2211;

a receiving buffer 2212;

a receiving package voice unit 2213; and

a second flash memory 2214.

9. The device according to claim 1,

wherein said second operation unit 23 comprises

a second indicating light 231;

a function key 232;

a second voice indicator 233;

a second power supply unit 234;

a second microphone connecting port 235;

a second earphone connecting port 236; and

a registration key 237.

10. The device according to claim 1,

wherein said emitting device 1 has a method comprising steps of:

(a) booting and resetting said emitting device 301;

(b) staying in an idle status 302;

(c) checking whether an uploaded package is received 303;

(d) if said uploaded package is not received, processing steps of;

(d1) reading data in said first flash memory 304;

(d2) setting a quality feedback code 305;

(d3) packaging data 306; and

(d4) transferring a downloaded package 307 and then going to step (b);

(e) if said uploaded package is received, unpacking said uploaded package 308;

(f) through a voice data receiving buffer 309, processing voice reconstruction 310;

(g) checking whether a connection exists 311;

(h) if said connection exists, checking whether an alarm parameter exists 312;

(i) if said connection does not exist, setting a wireless channel parameter 313 and then checking whether said alarm parameter exists 312;

(j) if said alarm parameter exists, starting a light and a voice alarm 314 and checking whether a registration parameter and a check-in parameter exist 315;

(k) if said alarm parameter does not exist, directly checking whether said registration parameter and said check-in parameter exist 315;

(l) if said registration parameter and said check-in parameter do not exist, reading parameters of said emitting device 316 and then going to step (d1);

(m) if said registration parameter and said check-in parameter exist, setting said registration parameter 317;

(n) writing buffer data into said first flash memory 318;

(o) reading parameters of said emitting device 316 and then going to step (d1); and

(p) on voice-sampling, processing steps of;

(p1) directly taking a voice sample 319;

(p2) transferring said voice sample to a data register 320;

(p3) checking whether a transferring buffer is full 321;

(p4) if said transferring buffer is full, reading said parameters of said emitting device 316 and then going to step (d1); and

(p5) if said transferring buffer is not full, going to step (p1).

11. The device according to claim 1,

wherein said receiving device 2 has a method comprising steps of:

(a) booting and resetting said receiving device 401;

(b) checking whether a registration is required 402;

(c) if said registration is not required, processing steps of;

(c1) pushing a registration key 403; and

(c2) checking whether said registration key is pushed more than one second 404;

(d) if said registration key is not pushed more than one second, pushing said registration key more than one second again;

(e) if said registration key is pushed more than one second, checking whether a downloaded package is received 405;

(f) if said downloaded package is received, processing steps of;

(f1) transferring a registration package 406; and

(f2) checking whether said registration is successful 407;

(g) if said registration is not successful, going to step (c1);

(h) if said registration is successful, processing steps of;

(h1) staying in an idle status 408; and

(h2) checking whether an alarm is required 409;

(i) if said alarm is required, starting said alarm 410 and checking whether a transferring buffer is full 411;

(j) if said alarm is not required, directly checking whether said transferring buffer is full 411;

(k) if said transferring buffer is full, processing steps of;

(k1) reading parameters of said receiving device 412;

(k2) packaging data 413; and

(k3) transferring an uploaded package 414;

(l) if said transferring buffer is not full, checking whether a downloaded package is received 415;

(m) if said downloaded package is not received, going to step (h1);

(n) if said downloaded package is received, checking whether a frequency channel needs to be changed 416;

(o) if said frequency channel needs to be changed, processing steps of;

(o1) changing said frequency channel to a new frequency channel 417;

(o2) processing voice reconstruction 419 through a voice data receiving buffer 418; and

(o3) staying in an idle status 420;

(p) if said frequency channel does not need to be changed, processing step (o2) and step (o3);

(q) if said downloaded package is not received in step (e), checking whether a channel table needs to be replaced 421;

(r) if said channel table does not need to be replaced, changing frequency channel 422 and then going to step (e);

(s) if said channel table needs to be replaced, going to step (c1);

(t) if a registration is required in step (b), checking whether a downloaded package is received 423;

(u) if said downloaded package is received, unpacking package 424 and processing step (m2) and step (m3);

(v) if said downloaded package is not received, processing steps of;

(v1) pushing a function key for check-in 425; and

(v2) checking whether a button is pushed 426;

(w) if a button is not pushed, pushing a button again;

(x) if a button is pushed, uploading a check-in package 427;

(y) checking whether a downloaded package is received 428;

(z) if said downloaded package is received, unpacking package 424 and processing step (o2) and step (o3);

(aa) if said downloaded package is not received, going to step (c1); and

(ab) on voice-sampling, processing steps of;

(ab1) taking voice sample 429; and

(ab2) transferring data of said voice sample to a data register 430 and processing step (i2) and step (i3).