Source: https://patents.justia.com/patent/20120321101
Timestamp: 2019-08-18 00:38:50
Document Index: 126966277

Matched Legal Cases: ['art 170', 'art 180', 'art 160', 'art 170', 'art 185', 'art 160', 'art 210', 'art 250', 'art 260', 'art 270', 'art 280', 'art 210', 'art 260', 'art 270', 'art 250', 'art 250', 'art 260', 'art 270', 'art 280', 'art 130', 'art 150', 'art 170', 'art 180', 'art 185', 'art 190', 'art 220', 'art 260', 'art 270', 'art 280', 'art\n1', 'art.\n6']

US Patent Application for WIRELESS MIC SYSTEM FOR AUTOMATICALLY PARING Patent Application (Application #20120321101 issued December 20, 2012) - Justia Patents Search
Justia Patents Noise Or Distortion SuppressionUS Patent Application for WIRELESS MIC SYSTEM FOR AUTOMATICALLY PARING Patent Application (Application #20120321101)
Disclosed is a wireless MIC system for automatically paring, which comprises a wireless MIC which includes a paring button at its one side and facilitates a connection mode as it is automatically paired with an amplifier by transmitting a paring request signal when the paring button is on, and initializes a connection related information stored in a storing part when the connection mode is cancelled and converts an acoustic signal into a digital audio signal and transmits to the paired amplifier; and an amplifier which facilitates a connection mode as the wireless MIC and the amplifier are paired by setting a transmission and receiving channel of the amplifier and the wireless MIC, and amplifies a digital audio signal from the wireless MIC and outputs in an acoustic form.
The connection state judgment part 170 is provided to judge the connection state between the wireless MIC 100 and the amplifier 200.
The information provision part 180 allows the result of the judgments of the charge state judgment part 160 and the connection state judgment part 170 to output via the LED 190 or the LCD 195 which is installed at one side of the wireless MIC 100.
The alarm part 185 is provided to output a charge suggestion message via the LED 190 or the LCD 195 when a charge level is below a set reference level as a result of the judgment of the charge state judgment part 160, and allows a SMS informing a charge suggestion to be transmitted to the user's terminal of the wireless MIC 100. With the above construction, the use is easy to check out the charge state of the MIC, thus preventing the discharge of the device in the course of the lecture in advance.
The LED 190 is installed at one side of the wireless MIC 100 and is provided to display the charge state of the wireless MIC 100 and the connection state with the amplifier 200.
The LED 195 is installed at one side of the wireless MIC 100 and displays a charge state of the wireless MIC 100 and a connection stat with the amplifier 200.
The storing part (not shown) is provided to store a pin code of the wireless MIC 100 and a user information of the wireless MIC and is provided to temporarily store the information of the paired amplifier in the connection mode.
FIG. 3 is a block diagram of the inner construction of the amplifier of FIG. 1.
As shown in FIG. 3, the amplifier 200 comprises a plurality of wireless chips 201, a plurality of input terminals 203, a channel process part 210, a howling inhibition circuit 220, a tone adjustment circuit 230, a volume adjustment circuit 240, a central control part 250, a tone adjustment input part 260, a volume adjustment input part 270 an a storing part 280.
The plurality of the wireless chips 201 are provided to receive a paring request signal and a digital audio signal from the plurality of the wireless MICs 100.
The plurality of the input terminals 203 are provided to receive a digital audio signal or a digital image signal from an external input device disposed at one side of the amplifier. In more details, the present invention is directed to maximizing the compatibility of the devices with the aid of a plurality of input terminals 203. For example, the present invention makes it possible to receive an input signal from a PC or a DVD player via a plurality of input terminals 203 and output the input signals for the purposes of a signal mixing, an external acoustic instrument connection, an audio device expansion, a wired MIC terminal support and a RGB signal distribution.
The channel processing part 210 is provided to transmit a digital audio signal using a transmission and receiving channel without any interference of each MIC based on an advanced adaptive frequency hopping when receiving a digital audio signal from the plurality of the wireless MICs 100. In other words, the present invention is directed to preventing crosstalk by adapting an automatic channel conversion method. As mentioned in the above, the present invention is advantages to effectively output the acoustic sounds from the plurality of the wireless MICs via one amplifier without interference occurring.
The channel process unit 210 is provided to implement a data exchange by setting a transmission and receiving channel for the purpose of exchanging data when a digital audio signal is received from one wireless MIC 100.
The howling inhibition circuit 220 is provided to judge whether or not a howling occurs by detecting any change in a digital audio signal from the wireless MIC 100, and is provided to eliminate the howling by adjusting a gain value of the digital audio signal in case that the howling is detected.
At this time, the howling inhibition circuit 220 is designed and programmed to judge the howling has occurred when the amplitude of the digital audio signal largely rises as compared to a reference level in a specific frequency region or continuously rises for a certain time period and then reaches a peak value.
The tone adjustment circuit 230 is provided to modulate a digital audio signal from the wireless MIC 100 to a certain tone value when a request for adjusting the tone via the tone adjustment input part 260 is received.
The volume adjustment circuit 240 is provided to adjust a digital audio signal from the wireless MIC 100 to a certain volume level when a request for adjusting the volume via the volume adjustment input part 270 is received.
The central control part 250 is provided to process the main volume of the amplifier 200 depending on the adjustment signal when a main volume adjustment signal of the amplifier 200 is received from the wireless MIC 100.
The central control part 250 is provided to delete the pin code exchanged between the device and initialize the same when the connection mode is cancelled when the wireless MIC 100 is out of the set range or by receiving a request command of disconnecting the pairing from the wireless MIC.
The tone adjustment input part 260 receives a command on the tone adjustment.
The volume adjustment input part 270 receives a command on the volume adjustment.
The storing part 280 temporarily stores the data from the wireless MIC in case of the connection mode.
The present invention is advantageous to provide various conveniences to a lecturer who gives lecture under an advanced lecture room environment equipped with an advanced wireless system.
[Descriptions of the reference numerals of the drawings]
100: wireless MIC 101: paring button 102: volume adjustment button 103: MUTE button 110: central processing unit 120: initialization part 130: USB input terminal 140: charge process part 150: charge battery 160: charge state judgment part 170: connection state judgment part 180: information provision part 185: alarm part 190: LED 195: LCD 200: amplifier 201: wireless chips 203: input terminal 210: channel process part 220: howling inhibition circuit 230: tone adjustment circuit 240: volume adjustment circuit 250: central control part 260: tone adjustment input part 270: volume adjustment input part 280: storing part
1. A wireless MIC (microphone) system for automatically paring, comprising:
a wireless MIC which includes a paring button at its one side and facilitates a connection mode as it is automatically paired with an amplifier by transmitting a paring request signal when the paring button is on, and initializes a connection related information stored in a storing part when the connection mode is cancelled and converts an acoustic signal into a digital audio signal and transmits to the paired amplifier; and
an amplifier which facilitates a connection mode as the wireless MIC and the amplifier are paired by setting a transmission and receiving channel of the amplifier and the wireless MIC, and amplifies a digital audio signal from the wireless MIC and outputs in an acoustic form.
2. The system of claim 1, wherein said amplifier comprises:
a plurality of wireless receiving chips which receive a paring request signal and a digital audio signal from the plurality of the wireless MICs; and
a channel process part which allows each wireless MIC to transmits a digital audio signal by using a transmission and receiving channel based on an advanced adaptive frequency hopping method when digital audio signals are transmitted from the plurality of the wireless MICs.
3. The system of claim 2, wherein said amplifier comprises:
a howling inhibition circuit which judges whether a howling has happened by detecting a change of a digital audio signal from a wireless MIC, and eliminates a howling by adjusting a gain value of a digital audio signal when it is judged that a howling has happened.
4. The system of claim 3, wherein said amplifier comprises:
a plurality of input terminals which are formed at one side of the amplifier and receive a digital audio signal or a digital image signal from an external input device.
5. The system of claim 4, wherein said amplifier comprises:
a tone adjustment input part which receives a command on a tone adjustment;
a volume adjustment part which receives a command on a volume adjustment;
a tone adjustment circuit which modulates a digital audio signal from the wireless MIC into a corresponding frequency for thereby adjusting to a certain tone value when a request for adjusting a tone is inputted from the tone adjustment input part; and
a volume adjustment circuit which adjusts a digital audio signal from the wireless MIC to a certain volume valve when a request for adjusting a volume is received from the volume adjustment input part.
6. The system of claim 1, wherein said wireless MIC comprises:
a paring button which receives a command on a paring with an amplifier;
a central processing unit in which a paring request signal is transmitted to an amplifier when an on signal is received from the paring button, and a pin code of a wireless MIC is transmitted for a paring between the devices when a paring approval signal and a pin code of an amplifier are received from the amplifier by transmitting a paring request signal to the amplifier, and an acoustic signal is converted into a digital audio signal in the connection mode as the devices are paired and, and is transmitted to a paired amplifier; and
an initialization circuit which initializes by deleting a pin code information exchanged between the devices when a connection mode with the amplifier paired with the wireless MIC is cancelled.
7. The system of claim 6, wherein said wireless MIC comprises:
a USB input terminal which is installed at one side of the wireless MIC and receives a DC voltage of a computer; and
a charge process part which charges with a DC voltage inputted via the USB input terminal.
8. The system of claim 7, wherein wireless MIC comprises:
a LED installed at one side of the wireless MIC;
a LCD installed at one side of the wireless MIC;
a charge state judgment part which judges a charge state of a charge battery of the wireless MIC;
a connection state judgment part which judges a connection state between the wireless MIC and the amplifier; and
an information provision part which allows a result of the judgment of the charge state judgment part and the connection state judgment part to be outputted via the LED or the LCD.
9. The system of claim 8, wherein said wireless MIC comprises:
an alarm part which process to output a charge suggestion message via the LED and the LCD when a charge level is below a previously set level as a result of the judgment of the charge state judgment part and processes to transmit a short message (SMS) informing a charge suggestion to a user of the wireless MIC.
Publication number: 20120321101
Applicant: EARZONE CO., LTD. (Seoul)
Inventor: Kang-Seok LEE (Seoul)
Application Number: 13/473,511
Current U.S. Class: Noise Or Distortion Suppression (381/94.1); With Amplifier (381/120)
International Classification: H03F 99/00 (20090101); H04B 15/00 (20060101);