KR100765159B1 - Rf module chip and portable music performance instrument built-in thereof - Google Patents

Abstract

An RF chip and a portable karaoke having the same are provided to output clear voice without noise and signal cross by transmitting the voice signal through a digital RF module. An ASIC(Application Specific Integrated Circuit) chip(10) for a karaoke comprises a controller of a CPU and DSP(11), output units, a video display control part, a sound source module(13), and a digital RF module(14). A data signal is output to an I/O logic interface through a gate array. The music data among the data signals is outputted to the outside through the I/O logic interface. The video display control part outputs the video signal via an RGB encoder and an overlay circuit. The sound source module receives a control signal transferred from the CPU and DSP and outputs a data signal for the songs. The digital RF module transmits the sound signal to at least one wireless microphone.

Description

RF module chip and portable music performance instrument built-in

1 is a block diagram of a karaoke cycle ASIC chip containing a digital wireless audio transmission and reception module according to the present invention.

Figure 2 is a complete block diagram of a portable karaoke cycle incorporating a digital wireless audio transmission and reception module inside the ASIC according to the present invention.

            Explanation of symbols on the main parts of the drawings

10; Music cycle cycle ASIC chip 11; CPI & DSP

12; Cache memory 13; Sound source module

14; Digital wireless transceiver module 15; 2D graphics engine

16; Video encoder 17; Video Decoder Interface

18; I / O interface circuit 19; NAND Flash Memory Interface

20; SDRAM memory controller 21; Master clock

22; Waveform table PCM ROM 23; ADC and DAC Circuits (Audio Signals)

24; Audio output signals (L / R) 25, 26; Wireless microphone

27; NTSC / Composite video signal output

28; S-Video signal 29; Composite video signal

30; NAND flash memory 31; S-DRAM Memory

32; Memory pack

33; Key matrix

34; Remote Control and Backlight Control

35; USB port and UART communication port

36; Video decoder

37; LED 38; LCD (LCD)

The present invention is capable of bidirectional communication by embedding digital wireless audio transmission / reception module inside an ASIC chip for singing cycle period, and outputting clean voice by reducing noise due to modulation and preventing crosstalk, and transmitting by using multiple wireless microphones simultaneously. The present invention relates to an ASIC chip for wireless transmission and reception and a portable song cycle including the same.

Conventional singing cycle has separate ASIC chip and digital wireless transmitting / receiving module for transmitting voice and video signal, and it is composed of analog signal processing method, which makes noise by crosstalk, unidirectional communication, receiving and transmitting one-to-one There is a problem that must be configured to use a secondary microphone.

In addition, the transmission of wireless audio in the conventional song cycle period is analog and FM modulation, showing the performance difference according to the characteristics of the parts, due to the hassle of tuning each of the produced parts due to the labor cost increases, productivity is reduced There is a problem.

Another conventional technique is that the cost increases when adopting the 16-channel fixed channel method in the 800 MHz to 900 MHz band in Korea, and the problem that the approval task is added due to different FM licensed frequency bands by country. There is this.

The present invention is to recognize and solve the problems of the prior art, it is possible to minimize the cross-talk by adopting the 16-channel frequency hopping method (Hopping method), a wireless transmission and reception ASIC chip capable of bidirectional communication and a portable therein The purpose is to provide a singing cycle.

Another object of the present invention is to unify the model and simplify the approval process when using a radio frequency in the 2.4 GHz, ISM (Industrial Scientific Medical) band, which is a global common frequency, and adopting a digital wireless audio transmission / reception scheme. It is to provide ASIC chip for wireless transmission and reception and portable karaoke cycle containing it.

Another object of the present invention is to provide a wireless transmitter and receiver ASIC chip and a portable karaoke cycle containing the same by allowing the user to use a plurality of transmitters without a cross-talk for a single receiver can be used simultaneously To provide.

Another object according to the present invention is to simply configure the circuit configuration by including a wireless digital transmission and reception module inside the ASIC chip for wireless transmission and reception, to achieve the stabilization of the system while improving productivity, the application range according to the digitalization It is to provide an ASIC chip for wireless transmission and reception and a portable song cycle containing the same.

The ASIC chip for wireless transmission and reception according to the present invention and a portable karaoke cycle containing the same are provided in an application specific integrated circuit (ASIC) chip, a CPU, a DSP, a cache memory, a sound module, a two-dimensional graphics engine, a video decoder. It has built-in interface, video encoder, NAND interface, input / output interface, audio ADC and DAC circuit and memory controller, and wireless digital transmit / receive module. In addition, it is a structure in which a karaoke cycle ASIC chip with the digital wireless transmission / reception module is mounted on a portable wireless microphone.

Hereinafter, with reference to the accompanying drawings illustrating the configuration and operation of the embodiment of the present invention, the configuration and operation of the present invention shown and described in the drawings will be described as at least one or more embodiments, whereby the present invention described above The technical idea and its core composition and operation are not limited.

With reference to the drawings shown to facilitate understanding of the present invention.

Figure 1 shows a block diagram of an ASIC chip incorporating a digital wireless audio transmission and reception module according to the present invention, Figure 2 shows a complete block diagram of a portable karaoke cycle incorporating a digital wireless audio transmission and reception module inside the ASIC chip. .

The application specific integrated circuit (ASIC) chip according to the present invention, the system control and control and processing a variety of programs stored in the memory CPU and DSP, cache memory for processing the program quickly, ROM for sound source data, Sound module consisting of RAM for sound source data and sound source, 2D graphic engine that enables two-dimensional graphics on display panel, video decoder interface, video encoder, NAND interface, input / output interface, memory controller, Built-in audio ADC and DAC circuit and digital wireless transmitting / receiving module are integrated so that data can be exchanged with external circuit by address signal, data signal, read and write signal and other control signals.

The ASIC chip having a sound source module and a wireless digital transmitting / receiving module according to the present invention includes a program related to OS (OS), which is a program for controlling a singing cycle cycle system, graphics processing and various screen control software. ) Is connected to address signals, data signals, read and write signals, chip select signals, and other control signals to facilitate operation.

The ASIC chip including the sound source module and the wireless digital transmit / receive module includes a NAND flash including a booting software for booting a system, a predetermined system operating program, a font display and graphic function, and data, song lyrics, and accompaniment required for system operation. It has a memory.

Song group cycle using the ASIC chip according to the present invention has a built-in wireless digital transmit / receive module has a bandwidth of 2.4 GHz, ISM (Industrial Scientific Medical) band, which is a worldwide common frequency for transmitting and receiving signals with external display panels and speakers. Multiple channels of MHz can be set and used, and digital wireless audio transmission and reception can be adopted for signal transmission and reception, and the model can be unified, and the frequency approval procedure of each country can be simplified.

In addition, the portable karaoke cycle of the present invention can be configured to exchange various data information by bidirectional communication when the digital wireless audio transmission and reception method, and 16-channel frequency to prevent crosstalk during signal transmission in the same area It is configured to transmit a signal in a hopping manner. That is, a plurality of wireless microphones that emit signals to one display panel and a speaker that receive signals transmitted from the wireless microphones can be used simultaneously.

Look at the embodiment according to the present invention.

[Example]

A specific embodiment according to the present invention will be described with reference to the drawings. The ASIC chip for singing cycle cycle according to the present invention includes a CPU and DSP 11 for controlling various programs stored in a system control and a memory, a cache memory 12 for quickly processing the program, a ROM for sound source data, and a sound source. Sound source module 13 composed of data RAM and sound source, digital wireless transmit / receive module 14, two-dimensional graphics engine 15 for enabling two-dimensional graphics on display panel, video encoder 16, video decoder The interface 17, the NAND flash memory interface 19, the input / output logic interface circuit 18, the audio ADC and the DAC circuit 23, and the SDRAM memory controller 20 are integrally formed to form an address signal, It consists of a single music cycle period ASIC chip that can exchange data signals, read / write signals, chip select signals and other signals necessary for control quickly and efficiently.

The ASIC chip 10 for a karaoke cycle according to the present invention has a built-in digital wireless transmit / receive module 14 and has a frequency band of 2.4 GHz and ISM that can be commonly used worldwide for exchanging signals with an external display panel and a speaker. (Industrial Scientific Medical) It adopts digital wireless audio transmission / reception method that can set radio channel with 1MHz bandwidth and communicate with radio frequency.

According to the present invention, the singing cycle period with the digital radio transmission / reception module 14 is configured to enable various data information exchange by bidirectional communication when necessary, and 16 channels to minimize crosstalk during signal transmission in the same area. It is configured to transmit a signal by frequency hopping method, and it is possible to use a plurality of wireless microphones 25 and 26 that simultaneously output signals to one display panel and a speaker that receive signals transmitted from the wireless microphones 25 and 26. It is configured to.

The karaoke cycle ASIC chip 10 according to the present invention includes the CPU and DSP 11, the sound source module 13, the memory controller 20, the audio ADC and the DAC circuit 23, and the cache memory. 12) S-DRAM, which is a program that controls the system by interlocking with the Singing Cycle Period ASIC chip, and software for graphic screen processing and screen control, has address signal, data signal, and reading. And it is configured to send and receive write signals, chip select signals and other signals necessary for control quickly and efficiently.

The karaoke cycle ASIC chip 10 according to the present invention includes the CPU and DSP 11, the sound source module 13, the NAND flash memory interface 19, the audio ADC and the DAC circuit 23, and the cache. An NAND flash memory 30 having an operation program for booting a system in conjunction with a singing cycle cycle ASIC chip 10 having a memory 12, a system operating program, a font display and graphics function, and data and music necessary for system control. It is provided.

An audio ADC for inputting a user's voice from the outside through a wireless microphone to the singing cycle cycle ASIC chip 10 including the CPU and DSP 11, the sound source module 13, and the cache memory 12. And a DAC circuit 23, wherein the audio ADC and the DAC circuit 23 have music files of various formats (song accompaniment, PCM, ADPCM) stored in the internal memory of the song selected by the user. , MP3 type) to search and select the song accompaniment, echo and user voice from the mixer and then to the speaker.

A video signal inputted from an external CCD video camera or the like in conjunction with the song repeat cycle ASIC chip 10 having the CPU and DSP 11, the video decoder interface circuit 17, and the cache memory 12 is provided. A karaoke cycle ASIC chip having a video encoder circuit 16 capable of inputting and having a two-dimensional graphics engine 15 and the CPU and DSP 11, the video encoder circuit 16, and the cache memory 12. 10) means for outputting the video signal embedded in the karaoke cycle to an external display panel in NTSC or PAL, and means for displaying a still image on the display panel as an image file (e.g. JPEG file). It consists of.

Between the audio ADC and DAC circuit 23 and the sound source module 13, which are embedded in the karaoke cycle chip, a FFT filter and a voice level detector for detecting the level of the input sound are provided. And a means for detecting the frequency and the magnitude and comparing the basic sound of the song stored in the sound source data to the display panel.

The FFT filter and the voice level detector detect the size and frequency of the voice input by the user through a microphone so that the user can practice the song, listen to the basic sound, and follow the song. It is equipped with the structure compared with the basic sound about a song.

The karaoke cycle video signal processing method employing the ASIC chip 10 for karaoke cycle according to the present invention is a digital video signal processing method capable of preventing the shaking or flow of the video signal processing the video signal shown on the display panel In this case, the video signal input by the external CCD camera and the video signal stored in the memory of the karaoke cycle are stored in the frame unit, and the input / output is controlled to transmit the video signal stored in the memory of the singing cycle cycle to the display panel. A memory controller, and means for outputting a video signal using a clock signal and horizontal and vertical synchronization signals.

The video signal output to the display panel is output as a composite video signal through a conventional NTSC / PAL method or an S-Video method that separates luminance and color and emits the video signal. The NTSC or PAL method is used. The video signal from or through the S-Video is sent out as a composite video signal (Y, Pb, Pr) that is transmitted separately by luminance and color to obtain a clearer and clearer video signal. It is further provided.

The key cycle according to the present invention is a key matrix for controlling various control buttons in conjunction with the cyclic cycle ASIC chip 10 having the CPU and DSP 11, the input / output logic interface circuit 18, and the cache memory 12. 33), an LED 37 for checking the operation of the wireless microphone, an LCD 38 used to display a signal input by the key matrix or other control signals, a remote controller and a backlight control 30 Means for controlling the input signal.

The sound source module 13 is composed of a sound source data ROM and RAM and a sound source, and stores various types of music files and basic sounds related to the music data, and for configuring sample waveforms and basic sounds for the basic sounds. Wave Table PCM ROM (22) with parameters, and the sound source module 13 and the waveform table PCM ROM (22) in conjunction with the preparation to sing a song before singing practice and singing It is provided with a configuration for outputting the basic sound necessary for the speaker through the audio ADC and DAC circuit 23 and the amplifier.

Karaoke according to the present invention has a wireless microphone, a wired microphone and a built-in microphone as a means for inputting the voice from the outside, the voice of the user input through the microphone through the audio ADC and DAC circuit 23, the accompaniment, echo and In addition to having a means for recording in the memory pack 32 is inserted into the internal memory or the slot in the form of the user's voice, the F between the audio ADC and DAC circuit 23 and the sound source module 13 (FFT) filter and a voice level detector for detecting the level of the input sound, and means for detecting the frequency component and magnitude in the voice of the user input through the microphone and comparing it with the basic sound stored in the sound source data to display on the display panel Equipped.

The FFT filter and the voice level detector detect the loudness and frequency components of the voice input through the microphone so that the user can efficiently and economically practice the song, listen to the basic sound and follow the song. It has a structure to compare with the basic sound stored in (13). By installing the USB port and the UART communication port 35 through the input / output logic interface circuit, the system software can be upgraded through a computer or downloaded to download necessary music files.

The karaoke cycle according to the present invention analyzes the pronunciation input through the user's microphone using an FFT filter and a voice level detector capable of analyzing the user's sound input through a wireless microphone and a built-in microphone. It is equipped with a means for pointing out the wrong part and built-in programs for language learning of various kinds is configured to be able to learn language by wireless transmission and reception with a general television receiver.

That is, the karaoke cycle according to the present invention includes means for comparing the basic sound stored in the memory of the sound source data with the voice input by the user through the microphone, so that the user can select the learning mode and follow the pronunciation exercises and sentences in the language they want to learn. It is designed to efficiently perform listening exercises and reading exercises.

The karaoke cycle includes means for storing data about the song lyrics and the basic sound for the pitch in a memory, and assigning a score to a song sung by the user by comparing the stored memory with a voice input by a user through a microphone.

The ASIC chip of the present invention and the portable karaoke cycle containing the same have a built-in wireless digital transmit / receive module on the chip, and the crosstalk minimization can be minimized by embedding the ASIC chip for karaoke cycle with the digital wireless transmit / receive module embedded in the portable wireless microphone. It is equipped with channel frequency hopping method, can use multiple wireless microphones for transmission at the same time, and bi-directional communication is possible.

Another effect according to the present invention is the 2.4 GHz band, which is a common frequency used worldwide, and when the digital wireless audio transmission / reception method is used, the model can be unified, the approval process can be simplified, and a single receiver can be used. It can be configured to accommodate two transmissions without any confusion, allowing users to use multiple wireless microphones simultaneously.

Another effect according to the present invention is to simply configure the circuit configuration by including a wireless digital transceiver circuit in the ASIC of the karaoke cycle, to achieve the stabilization of the system while improving productivity, and increase the application range according to the digitalization It is.

Claims (8)

In the radio transmission and reception chip for singing cycle period, A controller of CPI and DS that receives and transmits a control signal input by a user and sends or receives an address signal, a data signal, and a corresponding control signal; Means for outputting the requested data signal through an input / output logic interface via a gate array based on a signal requesting data stored in a memory output from the controller, an input / output strobe signal, and an address signal; The controller may include means for outputting music data from an externally transmitted data signal through an input / output logic interface; The controller receives the address signal and the data signal, and outputs the video signal through the video interface through the video encoder and the overlay circuit as the video address signal and the output enable signal through the video interface. A video display control unit controlling to A sound source module for receiving a control signal transmitted from the CPI and DSP controller and outputting a data signal for a song stored therein; ASIC chip for karaoke cycle consisting of digital wireless transmit / receive module designed to transmit one or more wireless signals simultaneously. In the portable karaoke cycle, CPI and DSP controller, gate array, input / output logic interface, video display control unit, sound source module, digital music transceiver cycle ASIC chip, Connected to the song cycle period ASIC chip, the means for fastening the LCD display and key matrix with each other, the data processing and receiving unit, the USB connection port, the internal video signal transmission and reception, audio ADC and DAC circuit, noise reduction A printed circuit board having a low pass filter and an output amplifier for An LCD display unit for controlling the music cycle, a control button, and a numerical input button for selection, which are fastened to each other by the ASIC chip for the music cycle and the printed circuit board and the data transmission signal line; Between the sound source module and the audio ADC and DAC circuit, an FFT filter for analyzing a spectrum of a user voice input through a microphone, a level detector for detecting the size of the user voice, and a circuit for generating an echo effect; The digital wireless transmission / reception module is composed of a plurality of channel frequency hopping methods to minimize crosstalk during data exchange and signal transmission in the same area by bidirectional communication. A microphone for inputting a user voice signal is a portable karaoke cycle consisting of a wireless microphone, characterized in that made of one or two or more wireless microphones. delete delete delete delete The method according to claim 2, The sound source module is a learning mode for learning a foreign language by comparing a basic sound set in a memory with a sound input by a user through a microphone and assigning a score, and analyzing and comparing a basic sound stored in a memory with a user's voice. Portable karaoke cycle with. The method according to claim 2, One side of the karaoke cycle portable karaoke cycle further comprises a USB port for connecting to the computer to upgrade the main program or to download and upload songs and song accompaniment to the memory and a plurality of memory packs.

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