CN203722801U - Expansion fitting - Google Patents

Abstract

The utility model discloses an expansion accessory, which is suitable for connecting to a sound signal source. Expansion accessories include an input connector, a sound processing module and a speaker. The input connector is adapted to be coupled to the sound signal source and used to receive the analog sound signal output from the sound signal source. The sound processing module is coupled to the input connector for processing analog sound signals. The speaker is coupled to the sound processing module for converting the processed analog sound signal into sound waves. The sound wave frequency band output by the speaker includes a sound wave frequency band that is difficult for human ears to hear.

Description

Expansion accessories

technical field

The utility model relates to an expansion accessory, in particular to an expansion accessory capable of outputting high frequency band sound.

Background technique

Sound Code (SoundCode) technology is to special code the information and package it in the high-frequency band sound that is inaudible to the human ear. After the sound is captured by the microphone and recognized by the system, the information packaged in the sound code can be obtained. Since information can be embedded in the sound waves of any music or video through sound code technology, various information can be quickly pushed to electronic devices (such as smart phones or tablet computers, etc.) through sound waves. For example, when a user is watching a TV program, the sound waves of the TV program can carry information and push it to the electronic device through audio code technology, so that the electronic device can link to the corresponding website for various related activities, such as shopping, voting and discussions etc.

Utility model content

The purpose of the utility model is to provide an expansion accessory for compensating the high frequency band sound wave output capability of the sound signal source.

To achieve the above purpose, the utility model proposes an expansion accessory suitable for connecting to a sound signal source. The expansion accessories include an input connector, a sound processing module and a speaker. The input connector is adapted to be coupled to the audio signal source for receiving the analog audio signal output from the audio signal source. The sound processing module is coupled to the input connector for processing analog sound signals. The loudspeaker is coupled to the sound processing module for converting the processed analog sound signal into sound waves. The sound wave frequency band output by the speaker includes the sound wave frequency band that is difficult for the human ear to hear.

The expansion accessory also includes: an output connector coupled to the input connector for outputting an analog sound signal from the sound signal source.

The sound processing module includes: an analog/digital converter coupled to the input connector for converting the analog sound signal from the sound signal source into a digital sound signal; a bandpass filter coupled to the analog/digital a converter to filter the digital sound signal to retain the digital sound signal in a frequency band that is difficult for human ears; an amplifier coupled to the band-pass filter to amplify the filtered digital sound signal; and digital/analog conversion The device is coupled to the speaker, and is used for converting the amplified digital sound signal into an analog sound signal and outputting it to the speaker.

The source of the sound signal is a TV set.

The expansion accessory also includes: a protective shell suitable for being installed on the sound signal source, wherein the input connector, the sound processing module and the speaker are integrated in the protective shell.

The sound processing module includes: an analog/digital converter coupled to the input connector for converting the analog sound signal from the sound signal source into a digital sound signal; a frequency separator coupled to the analog/digital converter A device is used to separate digital audio signals according to frequency; an amplifier is coupled to the frequency separator to amplify digital audio signals; a frequency combiner is coupled to the frequency separator and the amplifier to combine different frequencies digital sound signal, wherein the frequency separator passes the digital sound signal whose frequency falls within a first frequency range directly to the frequency combiner, and the frequency separator passes the digital sound signal whose frequency falls within a second frequency range to the an amplifier, through which a digital sound signal having a frequency falling within the second frequency range is amplified, the first frequency range is 0 to 15000 Hz, and the second frequency range is 15000 Hz to 22000 Hz; and a digital/analog converter , coupled to the frequency combiner for converting the amplified digital sound signal into an analog sound signal and outputting it to the speaker.

The source of the sound signal is a smart phone or a tablet computer.

The sound signal source has a display, and the direction of the sound wave output by the loudspeaker is parallel to the direction of the image projected by the display.

The sound wave frequency band output by the loudspeaker includes 15000 Hz to 22000 Hz.

The sound waves output by the loudspeaker are sound waves of 15000 Hz, 18000 Hz, 20000 Hz or 22000 Hz.

The advantage of this utility model is that, based on the above, the expansion accessories of this utility model can compensate the sound wave output capability of the high frequency band of the sound signal source (that is, the frequency band that is difficult for the human ear to hear), so that the sound code technology can be applied to this sound signal source.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail together with the accompanying drawings.

Description of drawings

FIG. 1 shows an expansion accessory of an embodiment of the present invention applied to a LINEOUT socket of a TV;

Fig. 2 is a circuit block diagram of the expansion accessory of Fig. 1;

FIG. 3A and FIG. 3B respectively depict the before and after combination of an expansion accessory and a smart phone according to another embodiment of the present invention;

FIG. 4 is a circuit block diagram of the expansion accessory shown in FIG. 3A .

Symbol Description

50: TV

52: LINE OUT socket

60: Smartphone

62: Audio output socket

64: display

100, 200: expansion accessories

110: input connector

120, 220: sound processing module

122, 222: Analog/Digital Converter

124: Bandpass filter

126, 226: Amplifier

128, 228: digital/analog converter

130, 230: speaker

140: output connector

210: input connector

250: Protective shell

225: Frequency separator

227: Frequency Combiner

D1: Sound wave output direction

D2: Image projection direction

Detailed ways

FIG. 1 shows an expansion accessory according to an embodiment of the present invention applied to a LINEOUT socket of a TV. Please refer to FIG. 1 , the expansion accessory 100 of this embodiment is suitable for connecting to an audio signal source, such as a TV 50 . The expansion accessory 100 includes an input connector 110 , a sound processing module 120 and a speaker 130 . The input connector 110 is suitable for being coupled to the TV 50 , such as the LINE OUT socket 52 of the TV 50 , for receiving the analog audio signal output from the TV 50 . The sound processing module 120 is coupled to the input connector 110 for processing analog sound signals. The speaker 130 is coupled to the sound processing module 120 for converting the processed analog sound signal into sound waves. The sound wave frequency band output by the speaker 130 includes the sound wave frequency band that is difficult for human ears to hear, for example, 15000 Hz to 22000 Hz. In an embodiment, the above-mentioned output sound waves are, for example, sound waves of 15000 Hz, 18000 Hz, 20000 Hz or 22000 Hz. The output connector 140 is coupled to the input connector 110 for outputting the analog audio signal from the TV set 50 , so it can replace the original purpose of the LINE OUT socket 52 .

FIG. 2 is a circuit block diagram of the expansion accessory in FIG. 1 . Please refer to FIG. 1 and FIG. 2 , the sound processing module 120 includes an analog/digital converter 122 , a bandpass filter 124 , an amplifier 126 and a digital/analog converter 128 . The analog/digital converter 122 is coupled to the input connector 110 for converting the analog audio signal from the television 50 into a digital audio signal. The bandpass filter 124 is coupled to the analog/digital converter 128 for filtering the digital audio signal so as to preserve the digital audio signal in a frequency band that is difficult for human ears to hear. The amplifier 126 is coupled to the bandpass filter 124 for amplifying the filtered digital audio signal. The digital/analog converter 128 is coupled to the speaker 126 for converting the amplified digital audio signal into an analog audio signal and outputting it to the speaker 130 .

FIG. 3A and FIG. 3B respectively illustrate the before and after combination of an expansion accessory and a smart phone according to another embodiment of the present invention. Please refer to FIG. 3A and FIG. 3B , the expansion accessory 200 of this embodiment is suitable for connecting to an audio signal source, such as a smart phone 60 . The expansion accessory 200 includes an input connector 210 , a sound processing module 220 , a speaker 230 and a protective case 250 . The input connector 210 is adapted to be coupled to the audio output socket 62 of the smart phone 60 for receiving an analog audio signal output from the smart phone 60 . The sound processing module 220 is coupled to the input connector 210 for processing analog sound signals. The speaker 230 is coupled to the sound processing module 220 for converting the processed analog sound signal into sound waves. The sound wave frequency band output by the speaker 230 includes the sound wave frequency band that is difficult for human ears to hear, for example, 15000 Hz to 22000 Hz. In an embodiment, the above-mentioned output sound waves are, for example, sound waves of 15000 Hz, 18000 Hz, 20000 Hz or 22000 Hz. In addition, the sound wave frequency band output by the speaker 230 also includes the sound wave frequency band that is easily audible by the human ear, for example, the sound wave frequency band below 15000 Hz. The protective case 250 is suitable for being installed on the smart phone 60 , wherein the input connector 210 , the sound processing module 220 and the speaker 230 are integrated in the protective case 250 . The protective case 250 can be in the form of a soft case or a hard case. In this embodiment, the smart phone 60 has a display 64 , and the direction D1 of the sound wave output by the speaker 230 is parallel to the direction D2 of the image projected by the display 64 . In another unillustrated embodiment, the above-mentioned smart phone 60 can also be replaced by a tablet computer to become the source of the sound signal. In other words, the expansion accessory 200 of this embodiment can also be applied to a tablet computer.

FIG. 4 is a circuit block diagram of the expansion accessory shown in FIG. 3A . Please refer to FIG. 3B and FIG. 4, in the present embodiment, the sound processing module 220 includes an analog/digital converter 222, a frequency separator 225, an amplifier 226, a frequency combiner 227 and a digital/analog converter 228 . The analog/digital converter 222 is coupled to the input connector 210 for converting the analog audio signal from the smart phone 50 into a digital audio signal. The frequency separator 225 is coupled to the analog/digital converter 222 for separating the digital audio signal according to frequency. The amplifier 226 is coupled to the frequency separator 225 for amplifying the digital audio signal. The frequency combiner 227 is coupled to the frequency separator 225 and the amplifier 226 for combining digital audio signals of different frequencies. The frequency separator 225 directly transmits the digital audio signal whose frequency falls within a first frequency range (for example, 0 to 15000 Hz) to the frequency combiner 227 . The frequency separator 225 transmits the digital audio signal with a frequency in a second frequency range (for example, 15000 Hz to 22000 Hz) to the amplifier 226 , and amplifies the digital audio signal with a frequency in the second frequency range through the amplifier 226 . The digital/analog converter 228 is coupled to the frequency combiner 227 for converting the amplified digital audio signal into an analog audio signal and outputting it to the speaker 230 . Different from the sound processing module 120 of the embodiment of FIG. 2 , the sound processing module 220 of the embodiment of FIG. 4 omits the band-pass filter 124 to output a full-band analog sound signal. Therefore, unlike the expansion accessory 100 in FIG. 1 which can only generate high-frequency sound waves with audio codes, the expansion accessory 200 can also generate the original output of the smart phone 60 in addition to generating high-frequency sound waves with audio codes. The analog sound signal is converted into sound waves.

To sum up, for the sound signal sources (such as televisions, smart phones, tablet computers, etc.) The accessories can compensate the sound wave output capability of the sound signal source in the high frequency band (that is, the frequency band that is difficult for the human ear to hear), so that the audio code technology can be applied to this sound signal source, thus increasing the added value of the sound signal source.

Claims (10)

1. expand an accessory, be suitable for being connected to a voice signal source, it is characterized in that, this expansion accessory comprises:

Input connector, is suitable for being coupled to this voice signal source, in order to receive from this voice signal analoging sound signal of exporting of originating;

Acoustic processing module, is coupled to this input connector, in order to treatment of simulated voice signal; And

Loud speaker, is coupled to this acoustic processing module, and in order to analoging sound signal after treatment is converted to sound wave, the sound wave frequency band that wherein this loud speaker is exported comprises the sound wave frequency band that people's ear is difficult to hear.

2. expansion accessory as claimed in claim 1, is characterized in that, this expansion accessory also comprises:

Out connector, is coupled to this input connector, the analoging sound signal in order to output from this voice signal source.

3. expansion accessory as claimed in claim 1, is characterized in that, this acoustic processing module comprises:

Analog/digital converter, is coupled to this input connector, in order to being converted to digital audio signal from the analoging sound signal in this voice signal source;

Band pass filter, is coupled to this analog/digital converter, in order to filter digital audio signal, to retain the digital audio signal of the frequency band that people's ear is difficult to hear;

Amplifier, is coupled to this band pass filter, in order to amplify the digital audio signal after filtering; And

Digital/analog converter, is coupled to this loud speaker, in order to the digital audio signal after amplifying is converted to analoging sound signal, and exports this loud speaker to.

4. expansion accessory as claimed in claim 1, is characterized in that, this voice signal source is television set.

5. expansion accessory as claimed in claim 1, is characterized in that, this expansion accessory also comprises:

Containment vessel, is suitable for being mounted to this voice signal source, and wherein this input connector, this acoustic processing module and this loud speaker are integrated in this containment vessel.

6. expansion accessory as claimed in claim 5, is characterized in that, this acoustic processing module comprises:

Analog/digital converter, is coupled to this input connector, in order to being converted to digital audio signal from the analoging sound signal in this voice signal source;

Frequency separator, is coupled to this analog/digital converter, in order to separate digital audio signal according to frequency;

Amplifier, is coupled to this frequency separator, in order to amplifier digital voice signal;

Frequency colligator, be coupled to this frequency separator and this amplifier, in order to the digital audio signal in conjunction with different frequency, the digital audio signal that wherein frequency is dropped on a first frequency scope by this frequency separator is directly passed to this frequency colligator, the digital audio signal that frequency is dropped on a second frequency scope by this frequency separator is passed to this amplifier, and drop on the digital audio signal of this second frequency scope via this amplifier amplification frequency, this first frequency scope is 0 to 15000 hertz, and this second frequency scope is 15000 hertz to 22000 hertz; And

Digital/analog converter, is coupled to this frequency colligator, in order to the digital audio signal after amplifying is converted to analoging sound signal and exports this loud speaker to.

7. expansion accessory as claimed in claim 5, is characterized in that, this voice signal source is intelligent mobile phone or panel computer.

8. expansion accessory as claimed in claim 5, is characterized in that, this voice signal source has display, and this loud speaker is exported the direction that sound wave line of propagation is parallel to image that this display projects.

9. expansion accessory as claimed in claim 1, is characterized in that, the sound wave frequency band that this loud speaker is exported comprises 15000 hertz to 22000 hertz.

10. expansion accessory as claimed in claim 1, is characterized in that, the sound wave that this loud speaker is exported is the sound wave of 15000 hertz, 18000 hertz, 20000 hertz or 22000 hertz.