TW200540693A - Audio scheme for computer system - Google Patents

Abstract

A scheme for audio effect, comprising: an audio jack coupled to a modulation means for modulating the signal that input or output through the audio jack, wherein the modulating means includes a RC component; a dual way analog I/O (input and output) coupled to the modulating means, wherein the dual way analog I/O (input and output) includes an input direction switch connected to a first diode and an output direction switch coupled to a second diode; an ESD protection circuit including at least three diodes coupled to the modulating means to prevent the electric static discharge (ESD) from damaging circuit.

Description

200540693 V. Description of the invention (1) The technical field to which the invention belongs ... The invention relates to a computer sound architecture, and in particular to a method for reducing a line-in or line-out Signal distortion audio structure. Prior technology: In the past, in the development of a large number of mono and stereo channels systems, people have been trying to achieve a high-quality original sound reproduction. The above efforts are focused on being able to produce a speaker ring field that meets the requirements of the effect, which is defined by measurable sound characteristics, such as frequency response, distortion and dynamic range. The speaker includes a mechanism including one or more sound transducers and a crossover network of a full frequency range for reproducing sound intelligibility. A speaker design includes a bass sound reinforcement transducer to reproduce the low frequency portion, a midrange transducer to reproduce the middle frequency portion, and a high frequency speaker transducer to reproduce the high frequency portion. At present, most visual and audio equipment displays a plurality of terminals or plugs to receive or input signals from external devices. The above general application is in loudspeaker terminals, especially for computer systems. Such a terminal not only has a small size but also takes up a small space. In a situation that is more advantageous than the normal method, the above-mentioned computer or computer game device allows the user to play a game or other audio and video

200540693

The effect is a bit worse than the user. The effect is provided in the electronic audio addition signal with different color signals is stored power on color signal update. The media. The traditional method or the player uses the above-mentioned sound effect is a traditional electronic device similar to the sound effect in a multi-pleasure device, the coefficient of the adder is predicted. In order to increase the execution period at the beginning of the above-mentioned effect, the two players must be 'S Or the user may need ^ Shi Dayi's sound channel. Therefore, when a m wants a special sound effect will occur. Special sounder to produce 5.1 or higher audio frequency effects, said ', broken in' additional different sound effects You can have deep sounds in musical instruments, and it is an important factor under the musical expression of a meter. In a microcomputer control effect controlled by a CPU ^ ircui t) to control the _ sound effect, by the operation 'Different effects will be added to the above input sound effects using different operating coefficients, the coefficient memory of the above coefficient addition circuit. Some coefficients have a fixed value from the beginning, but other coefficients and sounds must follow the player's control panel operation 'program and so on.

. What ^ = and §, the transmission and processing of digital sound effects have become more and more common. Airy: 频 Bandwidth and memory space ’The above signal is transmitted in a compressed form. A common form of audio compression is =: f ^ set including a number of plugs (plugs) to turn people / output signals or communicate internal and external. The plug includes a speaker terminal, an input cable, and a headphone terminal. The connection end is used as a signal contact, and generally provides a reference contact for signal contact. When a device is plugged in

Page 7 200540693 V. Description of the invention (3) When the terminal is described, it is "bouncing!" Switch (spring switch) — The state of the path ’is otherwise broken. Under the current architecture, please refer to FIG. 1. The upper terminal is electrically connected to an amplifier a M p through an R C element. Others include input terminals (INPUT) and output terminals (ουτρυτ) for inputting or outputting the above-mentioned audio signals. The electrode also includes other additional RC components coupled to it. It has too much space. Ports (ports) are used separately. Yudu (terminals). Therefore, a new design PC sound architecture is needed. The present invention can be adapted to a computer system, and the tuning can be used in other systems. Summary of the Invention: The main purpose of the present invention is to provide a structure for an electronic month. The structure is generally designed to switch on a microphone (MIC). The above structure includes an endpoint. At the same time, the above-mentioned structure occupies a stand-alone end point to provide the above-mentioned structure of the present invention with the audio frame of the system. A framework for providing audio effects includes a modulation device for modulating the number through the audio terminal, where The modulation device includes _ Rc components; a double output, coupled to the above modulation device, wherein the bidirectional analog signal terminal, coupled to or rotated out of the analog analog input / input / output includes

200540693 V. Description of the invention (4) A _ input direction switch connected to a first diode and an output direction switch connected to a second diode on one side; and an electrostatic discharge including at least three diodes ( ESD) protection circuit is coupled to the modulation device to prevent the electrostatic discharge (ESD) from damaging the circuit. The above structure further includes a capacitor selectively coupled between the electrostatic discharge (ESD) protection circuit and the modulation device. A bias is also coupled to the modulation device, wherein the bias is a _ amplifier bias. method of execution:

Please refer to FIG. 2, which is a structural diagram of the present invention. An audio terminal 丨 〇 color is connected to a time delay device or a modulation device 2 0 to modulate the signal input or output through the above audio drop f 1 〇. The above-mentioned modulation device 2 includes but is not limited to gray Yes = RC element. The above-mentioned Rc element includes a capacitor ^ and a resistor ^. The functions performed by the top-sealed RC element are the same as those in the conventional art. A bidirectional analog input i output 30 is coupled to the modulation device 20, that is, the "component & via a first endpoint. The bidirectional analog input / output 30 includes _:

The input direction switch s 丨 of the first diode D 丨 is connected to the output direction switch S2 of one to two and one to two. Above input or output from the system

^ ^ 10T #,,. VAV terminal. Therefore, it is different from the conventional technology. In the conventional technology, two 2 points and three sets of RC circuits are required to perform the two of the above input / output and amplifier.

Page 9 200540693 V. Description of the invention (5) A microphone bias is lightly connected to the second end of the aforementioned modulation device 20 (RC element). An electrostatic discharge (ESD) protection circuit 40 is also coupled to the RC element to prevent the electrostatic discharge (esd) from damaging the circuit. The above-mentioned electrostatic discharge (ESD) may be caused by the human body or other effects. The above-mentioned electrostatic discharge (ESD) protection circuit 40 may be composed of a diode. In a preferred case, the above-mentioned electrostatic discharge (ESD) protection circuit 40 may be composed of at least three diodes connected in series. Similarly, two diodes can be applied in the present invention. A capacitor C2 can be selectively lightly connected between the above-mentioned electrostatic discharge (ESD) protection circuit 40 and the modulation device (rc element) 20. Under the structure of the present invention, the above-mentioned capacitor C2 can be omitted. The DC bias voltage is coupled to the above-mentioned electrostatic discharge (RC element) 20 through a common node N1 to provide the necessary description. The input / output line is responsible for cutting from ground potential to 5 volts. (Signal wave crest to trough), the above signal is 1.5 volts. The above-mentioned transmitted sound is modulated by the above-mentioned modulation device 20 to conform to the above-mentioned audio terminal.

(ESD) protection circuit 40 and the energy source of the modulation device. For current applications, the magnitude of the above signal ranges from trough to crest. Conversely, for PC audio applications, 2 · 2 5 ~ 3 · 0 volts. Therefore, the input or output signal from the reference potential to the peak or trough signal terminal 10 in the above sound range is approximately from the ground potential to 3 volts. Parameter range of the above signal can be obtained by RC element

200540693

. Typically, if the above-mentioned electrostatic discharge (ESD) protection circuit 40 is established by a diode, the diode will cause a voltage drop of 0.7 volts. For example, one kilohertz (i k Hz) signal will be adjusted to THD. Compared to a 100 Hz (100 Hz) signal, ten times the capacitance is required. The above example may cause some signal distortion due to the modulation of the RC element and the 0.7 voltage drop characteristic caused by the diode Es. The above-mentioned electrostatic discharge (ESD) protection circuit 40 is provided in at least three diodes in a lightning structure Λ: τ. If the pressure drop of each diode is 0 tex, this structure will cause a pressure drop of 2. 丨. For the output example,

士 = body's electrostatic discharge (ESD) protection circuit 40 will reduce the output signal of the twisted discharge (ESD) protection circuit of Shi Shuyue heart + U) 40 sentences 衽-钿 _, A ^ ^ ^ one pole body Then, the above capacitor C2 smoky m is described in the preferred embodiment as above, but it is not intended to limit the scope of patent rights. The scope of patent protection shall depend on the appendix: its equivalent field. Anyone who is familiar with the arts in this field 4 belongs to ί :: 更 within the spirit or scope of the patent, making changes or retouching, ^

The equivalent changes or designs completed by Bao Ren in the spirit shown in 4 Bf are included in the scope of patent application described below.

i 200540693 Schematic illustration of the diagram, simple explanation of the diagram ... Through the following detailed description combined with the attached diagram, the above content and many advantages of this invention can be easily understood, of which: Figure 1 shows the traditional PC audio architecture . Figure 2 shows the audio architecture of the present invention. Graphical symbol comparison table: Audio terminal 1 0 Modulator 2 0 Bidirectional analog input / output 3 0 Electrostatic discharge (ESD) protection circuit 40

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Claims (1)

200540693 6. Scope of patent application Patent scope: 1. An audio architecture for a computer system, including: an audio terminal coupled to a modulation device for modulating a signal input or output through the audio terminal; a two-way An analog input / output is coupled to the modulation device; and an electrostatic discharge (ESD) protection circuit is coupled to the modulation device to prevent the electrostatic discharge (ESD) from damaging the circuit. 2. For an audio architecture for a computer system according to item 1 of the patent application, wherein the modulation device includes an RC element. 3. For the audio architecture for computer system, the second scope of the patent application, wherein the R C component includes a capacitor and a resistor. 4. For example, the audio architecture for a computer system in the first scope of the patent application, wherein the two-way analog input / output includes an input direction switch connected to a first diode and a second diode connected to a second diode. Output direction switch. 5. The audio architecture for a computer system, such as the scope of patent application No. 1, wherein the electrostatic discharge (ESD) protection circuit includes a diode. 6. For the audio architecture for computer system as described in the first patent application, the electrostatic discharge (ESD) protection circuit includes at least three diodes. Page 13 200540693 6. Scope of Patent Application 7. For example, the audio architecture for computer system of item 1 of the scope of patent application further includes a capacitor selectively coupled to the electrostatic discharge (ESD) protection circuit and the modulation device. between. 8. For example, the audio architecture for a computer system according to item 1 of the patent application scope further includes a bias coupling to the modulation device. 9. For an audio architecture for a computer system as claimed in item 8 of the patent application, wherein the bias is a microphone bias. 1 0. —An audio architecture for a computer system, including: an audio terminal coupled to a modulation device for modulating a signal input or output through the audio terminal; a bidirectional analog input / output coupled to the A modulation device; and an electrostatic discharge (ESD) protection circuit including at least three diodes, coupled to the modulation device to prevent the electrostatic discharge (ESD) from damaging the circuit. 1 1. If the audio framework for computer systems is covered by item 10 of the scope of patent application, The modulation device includes an RC element. 12 2. The audio architecture for a computer system according to item 11 of the patent application, wherein the RC element includes a capacitor and a resistor. Page 14 200540693 VI. Scope of patent application 13. For example, the audio framework for computer system in the scope of patent application No. 10, wherein the bidirectional analog input / output includes an input direction switch connected to a first diode. And an output direction switch coupled to a second diode. 14. The audio architecture for a computer system according to item 10 of the patent application scope further includes a capacitor selectively coupled between the electrostatic discharge (ESD) protection circuit and the modulation device. 15. The audio architecture for a computer system according to item 10 of the patent application scope further includes a bias coupling to the modulation device. 16. The audio architecture for a computer system according to item 15 of the scope of patent application, wherein the bias is a loudspeaker bias. 1 7. —An audio architecture for computer systems, including: An audio terminal coupled to a modulation device for modulating a signal input or output through the audio terminal, wherein the modulation device includes an RC element; a bidirectional analog input / output coupled to the modulation device, wherein The bi-directional analog input / output includes an input direction switch connected to a first diode and an output direction switch coupled to a second diode; and an electrostatic discharge (ESD) including at least three diodes. A protection circuit is coupled to the modulation device to prevent the electrostatic discharge (ESD) from damaging the circuit. 1 8. If the audio framework for computer system is the 17th in the scope of patent application, Page 15 200540693 6. The scope of patent application further includes a capacitor selectively coupled between the electrostatic discharge (ESD) protection circuit and the modulation device. 19. The audio architecture for a computer system, as claimed in item 17 of the patent application scope, further includes a bias coupling to the modulation device. 20. The audio architecture for a computer system according to item 19 of the patent application, wherein the bias voltage is a microphone bias voltage. Page 16