TW200536413A - Multimedia device - Google Patents

Abstract

The present invention relates to a multimedia device, comprising: a sound input device; a sound output device; an echo suppression device; a sound effect processing control chip; a USB hub control chip; and a USB interface. By integrating the sound input device, the sound output device, and the echo suppression device in the multimedia device, the present invention allows the use of a non-directional sound input device to reduce the manufacturing costs. Further, the present invention can be connected to a receiving device of a peripheral device, such as a camera and a keyboard or a mouse to provide versatility of function of the multimedia device of the present invention.

Description

200536413 V. Description of the invention (1) 1. [Technical field to which the new type belongs] The present invention relates to a multi-functional microphone, speaker, and echo cancellation = 2 2 In particular, a non-directional sound is used to reduce its production. The cost of J Body Pei: In it, 'to eliminate back to one, [previous technology] _ 71 Press, it is difficult to place a speaker and a microphone at the same time in a general multimedia device, ^, near the sound source in a limited space, In order to reduce the 2 peaks of the echo: grams of wind, and the microphone is connected to the following %% m β + production. However, such multimedia devices have. (Orthotropic microphones need to borrow people m, ::: Tiger, but in many The success of the video conference for people holding wheat is not easy or beautiful; (2) the cost of the directional body device belongs to the United States and China. I :; " 'This will increase more Examples of media devices :: Ran 121321, new type; profit "Vehicle remote information communication 'one coupon', vehicle type universal information communication device 'This device is inserted into Ergu S # seat and-earphone socket, the The microphone socket is available for user c; the headphone socket can The user inserts the earphones. The microphone and earphones of the prisoner both pull the ice τ 1 so there is a considerable distance between the external type and the external type. ^, Not as serious as the above-mentioned conventional multimedia devices, but this structure cannot It is used in multimedia devices. _ Ϊ́ ΐ National Patent No. 88208069, a new type of "hands-free 1 ^ ^? Sound combination device for mobile phones", which provides a hands-free 3-8 sound combination device for mobile phones, the purpose of which is for users Free on mobile phone

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When holding the handset function, the sound signal output from the mobile phone is output through the mouth of the car stereo. As in the previous case, because its microphone and car stereo are externally connected, there is a considerable distance between the two, so the echo is not as serious as the above-mentioned Baizhi multimedia device, but this structure cannot be applied to the multimedia device. in. Another example is the “national device”, which can receive unit data and numbers in conference records and quick broadcast processing orders, and can be stored for the purpose of digitization. It only has wheat problems, but in addition to the device ’s entire multimedia installation, three, [new In this process, the eighth and the echo provide a complete process of receiving the query unit, and by taking a positive storage order, the conference meeting can not be integrated, so it can be installed in one of the contents. Recording conferences, operating at any time, and other control actions, and controlling the next analog signal amplifier, the speaker's language, to achieve a large number of quotations, and is not conducive to the audio and video does not have to reach the point of the video can be neutralized to eliminate Improve the conventional multi-invention patent "device for recording information of conference information, the purpose of which is to control the input unit to perform positioning and recording; when the record is performed, the voice information of each unit in the conference can be signaled, and then codec The unit is converted into a number to be enlarged, and its audio is enhanced by multiples, and after being compressed into a compressed file, it is upgraded to recording Qualitative and long-term recording information can be systematically stored as a query and reference for the next day. In the previous case, the output of σσ8 is not generated, so there will not be a two-way communication function of the echo conference. And echo cancellation echo's disadvantages of media devices to reduce their production costs.

The purpose is to provide a non-directional microphone and device integrated in it to eliminate echo and thereby reduce

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It is clear that the multimedia device includes a sound input device for outputting sound to the sound input device and echoes in the sound; the sound processing control crystal is used to perform sound processing on the sound signal to the sound. The input device and the processing control chip can control the operation of the sound input to the sound processing control chip; the hub control chip is used for coupling to the production cost multimedia device.

In order to achieve the above-mentioned purpose, the input device is used to input sound signals and audio signals; the echo canceling device is coupled to the output device, and the audio signal piece can be eliminated after being coupled to the echo canceling device; the USB hub controls the audio output. The device and the sound effect input device, the sound output device and a USB interface are coupled to the USB and an external data processing device. A step-by-step understanding of the structure and features of the present invention. A detailed description of the preferred embodiments. In order to enable your review committee to advance and its purpose, drawings and the following are attached. IV. [Embodiment]

Please refer to FIG. 1, which shows a block diagram of the multimedia device in this case. As shown in the figure, the multimedia device in this case includes: the sound input device is an output device 20, the echo cancellation (EchO Cancellation) device is smart, and the sound effect processing control ( (Sound PrOcessing) chip 40; Hub Controller chip 50; and USB interface 60.俾 By integrating the sound input device 10, the sound output device 20, and the echo cancellation device 30 into the multimedia device, the non-directional sound input device can be used in this case to reduce its production cost. The sound input device 10 is used to input a sound signal.

Page 7 200536413 V. Description of the invention (4) further includes a microphone 11; and a first amplifier circuit 12. The microphone 11 is used for inputting the sound signal, and it is, for example, but not limited to, a non-directional microphone to reduce the production cost of the case; and the first amplifier circuit 12 is, for example, but not limited to, an operational amplifier ( Operation Ampl if ier), which is coupled to the microphone 11 and used to amplify the sound signal and output. The sound output device 20 is for outputting a sound signal, and further includes: a second amplifier circuit 21; and a speaker 22. The second amplifying circuit 21 is coupled to the echo cancelling device 3 0 to amplify the sound signal after the echo is eliminated; and the speaker 22 is coupled to the second amplifying circuit 21. It is placed beside the microphone 11 for outputting the sound signal. The echo cancellation device 30 is coupled to the sound input device 丨 〇 and the sound output device 2 0 ′ to eliminate echoes in the sound signal; the sound effect control chip 40 is coupled to the echo cancellation device 3 〇, used to output the sound signal after audio processing such as, but not limited to, encoding, decoding, compression, or decompression to save the signal transmission bandwidth. The U * SB hub control chip 50 is coupled to the sound input device W, the sound output device 2G, and the sound effect control chip 40, and it receives ΐ 1Λ input device 10, the sound output device 20, or the sound effect control two? ， Sound signal input 'and control the flow direction of the sound signal; Introduce: Second, it is used to connect to the surface hub control chip 50 to consume i to: external data processing device, such as but not limited to a bit processor ( PDA), etc. for data transmission. The multimedia device in this case may further include an image input device 70 and

Page 8 200536413 V. Description of the invention (5) A wireless receiving device 80. The video is limited to a digital camera or a CCD camera, ': two such as but without the function of image transmission; and the wireless enables the 8th of this case to be equipped with a hub control chip 50 for connecting to the wireless of the radio The signal, the peripheral line f from ,,,,,. 'Peripheral devices, mouse, trackball, and number board 22 such as but not limited to-wireless skating & including μ position board ..., line keyboard, game control Device ... wait. In addition, the children ..., the line receiving device 8o further has a transmitting and receiving effect. Eighth, there are A and line 81 to enhance the clarity of its wireless connection. Figure 2 'It shows the multimedia device of this case in a pair of things: Situ. As shown in the figure, the multimedia device in the present case is further designed to protect and contain the above-mentioned components. The housing 90 is, for example but not limited to, a couple, and the couple 90 is, for example but not limited to, a puppy or The other can be two animal puppets. During production, the microphone u in this case can be placed on the head of the doll, the CCD camera 70 in this case can be placed on the nose of the doll 90, and the team 21 in this case can be placed on the abdomen of the doll 90. The wireless receiving device 80 of this case is placed under the abdomen of the doll 90, the USB interface of this case is placed on the tail of the doll 90, and the first amplifier circuit 12, the second amplifier circuit 21, the echo cancellation device 30, and sound effects processing Control chip 40 & USB hub control chip 50 and other components are placed in the abdomen of the object 90, and the configuration of the multimedia device in this case can be completed. In addition, this case also has a power supply module (not shown) to supply the power for its work, which can be a battery module or an external DC power supply, which are all known technologies and are not described here.

Page 9 200536413 V. Description of the invention (6)-Therefore, through the implementation of this case, it integrates non-directional wheat and eight echo cancellation devices in it to eliminate echo, ^ production costs, and can also integrate images The input device and wireless reception are reduced, making the multimedia device in this case more suitable for video conference settings. Therefore, the shortcomings of the conventional multimedia device can be solved. … Using the superiority The one disclosed in this case is a preferred embodiment. For example, anyone who has decorated the technical ideas derived from this case and is familiar with the technology collection, and who changes or knows it, does not depart from the scope of patent rights in this case. a. It is easy to summarize what has been said in this case. Regardless of the purpose and means of this case, it is very different from the known technical characteristics, and its first invention is not compatible with the patent requirements of the invention. Granting a patent in Jay said that it would benefit society and feel good. ’,,’ pray early

Page 10 200536413 Brief description of the drawings 5. [Simplified description of the drawings] FIG. 1 is a schematic diagram showing the block diagram of the multimedia device in this case. Fig. 2 is a schematic diagram showing the multimedia device of the present case in a doll. Description of figure number: Microphone 11 Sound output device 20 Punch mouth 8 2 2 Sound processing control chip 4 0 USB interface 60 Wireless receiving device 80 Sound input device 10 First amplifier circuit 12 Second amplifier circuit 21 Echo cancellation device 30 USB hub control Chip 50 Image input device 70 Antenna 81 Couple 90

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Claims (1)

200536413 Patent application scope 1 · A multimedia device having: a sound input device for inputting a sound signal; a sound output device for outputting a sound signal; an echo cancellation device coupled to the sound input device and the sound The output device 'can eliminate the echo in the sound signal; ^ two sound processing control chips are coupled to the echo cancellation device, and the sound signals are processed after the sound effects are output; Shili a USB hub control chip is coupled to the sound input Device, the sound output device and the sound effect control chip, and control the flow of the sound signal; and σ " USB interface, coupled to the USB hub control chip 'to an external data processing device. 5 Xiao Yi Coupling μ Li! The multimedia device according to item 1 of the scope of patent application, wherein the earphone input device further comprises: a microphone for inputting the sound signal; and a first amplifying circuit coupled to the microphone for amplifying the microphone; The audio signal is output after the turn. 3. The multimedia device as described in item 2 of the scope of the patent application, wherein the Xi Kefeng is preferably a non-directional microphone, and the first amplifying circuit is preferably an operational amplifier. 4. The multimedia device according to item 1 of the scope of patent application, wherein the sound wheel-out device further comprises: a second amplifying circuit for lightly presenting the echo "Xiao Elimination Device" to amplify the sound signal after the echo is eliminated; as well as The 12th tribute 200536413 Sixth, the scope of patent application _. It is connected to the second amplifying circuit 'to output the audio signal. 5. The multimedia device according to item 4 of the scope of the patent application. The second amplifying circuit is preferably an operational amplifier. 6. The multimedia device described in item 1 of the patent application park, JL is connected to a machine. Like Xun Sui, it can be a digital camera or a CCi) photography device. The multimedia device described in item 1 of the patent patent encloses an iki message; wireless reception is set up to input the transmission from a wireless peripheral device ^ ^^ 11ΐ:!; J ^^^ t, I: Technology: 1 Please refer to the multimedia device described in item 7 of the scope of the patent, Fuzhongjin Wireless Receiver / Multimedia device described in better item 7 Which receiver. The best is a wireless signal access package for a computer wireless peripheral device, such as the multimedia device described in the first item of the scope of the second item of the second shell of the shell application, which includes -12. Such as Λ silkworm and the above-mentioned components. The housing is preferably the multimedia device described in item 1 of Piri A Fanyuan, wherein the erma is a puppet. 1 3. Audio-visual processing control: The multimedia device described in the first item of ΛLi Fanyuan, where the J " city film will perform reading, encoding, decoding, and compression of sound signals 200536413 VI. Scope of patent application or output after decompression, etc. to save signal transmission bandwidth Page 14