Communication lamp system

1 . A communication lamp system comprising:

a light source unit including a lens and a light source;

a piezoelectric element for generating an electrical acoustic signal based on sound; and

a processor configured to:

control the light source unit, the piezoelectric element, or a combination thereof; and

control the light source unit based on the electrical acoustic signal received from the piezoelectric element,

wherein the piezoelectric element is positioned on a surface of the lens, and

wherein the piezoelectric element is configured to vibrate and generate the electrical acoustic signal as the lens is vibrated due to the sound.

2 . The system of claim 1 , further comprising:

an analog to digital (A/D) converter for converting the electrical acoustic signal into a digital signal,

wherein the processor is further configured to:

receive the digital signal, the digital signal being an output of the A/D converter; and

analyze the digital signal based on a preset voice recognition algorithm.

3 . The system of claim 2 , wherein the processor is further configured to:

control an output of the light source unit based on the analyzed digital signal;

map the digital signal and a number of outputs of the at least one light source; and

control the output of the light source unit based on a mapping result.

4 . A communication lamp system comprising:

a light source unit including a lens and a light source;

a piezoelectric element for generating sound based on an electrical acoustic signal; and

a processor is configured to:

control the light source unit, the piezoelectric element, or a combination thereof; and

control the light source unit and the piezoelectric element based on the received electrical acoustic signal,

wherein the piezoelectric element is positioned on a surface of the lens, and

wherein the piezoelectric element is configured to vibrate and generate the sound as the lens is vibrated based on the received electrical acoustic signal.

5 . The system of claim 4 , further comprising:

a digital to analog (D/A) converter configured to:

convert a digital signal, which is an output of the processor, into the electrical acoustic signal; and

transmit the converted electrical acoustic signal to the piezoelectric element,

wherein the processor is further configured to:

output the digital signal by inserting a synchronization signal into the digital signal;

feed back the digital signal into which the synchronization signal is inserted; and

synchronize the fed-back digital signal with output of the light source unit.

6 . The system of claim 5 , further comprising a filter for receiving an output of the D/A converter, the filter configured to pass only a frequency of a predetermined standard or a frequency below the predetermined standard.

7 . The system of claim 5 , wherein the processor is further configured to:

receive feedback on the digital signal and analyze sound intensity, and

control an output pattern of the light source unit based on the analyzed sound intensity.

8 . A communication lamp system comprising:

a light source unit including a lens and a light source;

a piezoelectric element generating an electrical acoustic signal based on sound, generating the sound based on the electrical acoustic signal, or a combination thereof; and

a processor is configured to:

control the light source unit, the piezoelectric element, or a combination thereof; and

control the light source unit based on the electrical acoustic signal received from the piezoelectric element, or control the light source unit and the piezoelectric element based on the received electrical acoustic signal,

wherein the piezoelectric element is positioned on a surface of the lens, and

wherein the piezoelectric element is configured to

vibrate and generate the electrical acoustic signal as the lens is vibrated due to the sound, or

vibrate to generate the sound as the lens is vibrated due to the received electrical acoustic signal.

9 . The system of claim 8 , further comprising:

a switch positioned at one end of the piezoelectric element,

wherein the switch controls an output of the piezoelectric element.

10 . The system of claim 9 , wherein the processor is further configured to:

receive a surrounding noise signal from the piezoelectric element; and

output a signal having a phase opposite to the surrounding noise signal based on the surrounding noise signal.

11 . The system of 8 , wherein the piezoelectric element is positioned in a thin portion of the lens.

12 . The system of claim 8 , wherein the piezoelectric comprises a microphone that inputs sound to generate the electrical acoustic signal.

13 . The system of claim 8 , wherein the piezoelectric element comprises a speaker that generates sound based on the electrical acoustic signal.

14 . The system of claim 8 , wherein lens comprises an outer lens positioned outside of the light source.

15 . The system of claim 8 , wherein the piezoelectric element is positioned on a surface of the outer lens.

16 . The system of claim 8 , wherein the piezoelectric element is positioned in or on the lens and configured to vibrate in unison with vibration of the lens.