Patent Description:
Far-field speech is a function that integrates intelligent speech search to change user experience, realizes natural human-computer interaction, and allows users to "dialogue" with smart televisions or smart boxes from a long distance. Currently, a far-field speech board of a television is generally installed externally on a portion of the television, which will affect aesthetics of an entirety of the television. On one hand, a current improvement method is to install the far-field speech board in a front frame. In order that the far-field speech board does not affect a lens configured to reflect an infrared signal of a remote controller to an infrared receiving head, it is necessary to increase a volume of the front frame, which is not conducive to the aesthetics of the television. On the other hand, if the far-field speech board is still installed externally, the far-field speech board will affect the aesthetics of the entirety of the television.

Therefore, the prior art still needs to be improved and developed.

<CIT> discloses an apparatus for speech recognition, including: a speech input unit configured to acquire acoustic signal, a first recognition unit configured to recognize the acoustic signal, a communication unit configured to communicate with an external server, a second recognition unit configured to recognize the acoustic signal by utilizing the external server via the communication unit, and a remote signal input unit configured to acquire a control signal from a remote controller. The switching unit is configured to switch between the first recognition unit and the second recognition unit for recognizing the acoustic signal in response to a start trigger. The switching unit selects the second recognition unit when the start trigger is detected from the control signal, and the switching unit selects the first recognition unit when the start trigger is detected from the acoustic signal.

<CIT> discloses an apparatus for transmitting and receiving light signals. The apparatus includes an optical waveguide having one end and another end, a sensor unit including an infrared sensor for detecting an infrared signal and outputting a corresponding electrical signal, an ambient light sensor for detecting ambient light and outputting a corresponding electrical signal, and a light-emitting device, a lighttight housing for blocking out external light and in which the other end and the sensor unit are installed, and a controller for receiving an electrical signal output from at least one of the infrared sensor and the ambient light sensor and controlling the light-emitting device. The one end of the optical waveguide is optically connected to a first lens for collecting the ambient light and the infrared signal, so that the optical waveguide applies the collected ambient light and infrared signal to the sensor unit through the other end. The optical waveguide collects light emitted by the light-emitting device through the other end and provides the light to the one end to show the light emitted by the light-emitting device to an outside of the apparatus through the first lens.

The present disclosure provides a far-field speech support with a lens function and an electrical device. The far-field speech support provided by the present disclosure is suitable for electrical equipment with far-field speech functions, such as televisions and commercial monitors. The far-field speech support is made of a transparent polycarbonate material. After an infrared signal enters the transparent far-field speech support, the transparent far-field speech support acts as a lens to reflect the infrared signal to an infrared receiving head. In order to make purposes, technical solutions, and effects of the present invention clearer and more definite, the present invention will be further described in detail below with reference to accompanying drawings and embodiments. It should be understood that specific embodiments described herein are only used to explain the present invention, not used to limit the present invention.

In embodiments and claims, terms "a/an" and "the", unless specifically defined herein otherwise, can generally refer to a single or plural form.

Furthermore, if a description of the embodiments of the present disclosure comprises terms such as "first" and "second", the terms such as "first" and "second" are used merely for a purpose of description, but shall not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical feature. Hence, a feature defined with "first", "second", or the like may explicitly or implicitly includes one or more of this feature. In addition, technical solutions of the embodiments may be combined with each other, as long as those skilled in the art can realize such combination. When a combination of the technical solutions is contradictory or cannot be realized, it should be considered that such combination of the technical solutions does not exist, and does not fall within the claimed scope of the present disclosure.

Please refer to <FIG>, the present disclosure describes an embodiment of applying a far-field speech support <NUM> to a television <NUM>.

As shown in <FIG>, and <FIG>, the far-field speech support <NUM> with a lens function is applied to the television <NUM>. The television <NUM> includes a television body <NUM>, a far-field speech board <NUM>, an infrared receiving head assembly <NUM>, and the far-field speech stand <NUM>. Specifically, the far-field speech support <NUM> is installed at a middle of a bottom of the television body <NUM>, like a "slender chin", so that a protruding part of the far-field speech support <NUM> is very narrow and has a very slight influence on appearance.

Specifically, please refer to <FIG>, and <FIG>, the far-field speech support <NUM> comprises a base <NUM>, a far-field speech board installation portion <NUM>, a transparent light guide plate <NUM>, a buckle structure <NUM>, and an infrared reflective portion <NUM>. The far-field speech board installation portion <NUM> is vertically disposed on the base <NUM>. The buckle structure <NUM> is disposed on a side of the base <NUM> away from the far-field speech board installation portion <NUM> and configured to install the infrared receiving head assembly <NUM>. The transparent light guide plate <NUM> is disposed on a bottom side of the far-field speech board installation portion <NUM>. The transparent light guide plate <NUM> is disposed at a middle of the base <NUM>. The infrared reflective portion <NUM> is disposed corresponding to the transparent light guide plate <NUM> and disposed below the infrared receiving head assembly <NUM>. The infrared reflective portion <NUM> is integrally formed with the transparent light guide plate <NUM>. A reflective surface <NUM> of the infrared reflective portion205 has an inclined angle α with a bottom surface of the transparent light guide plate <NUM>. That is, the infrared reflective portion <NUM> is inclined in a direction away from the transparent light guide plate <NUM> to form a chamfer with a high-gloss surface, i.e. a reflective mirror surface. The far-field speech board <NUM> is adhered on the far-field speech board installation portion <NUM> with a double-sided adhesive tape, such as a very high bond (VHB) tape, so that installation of the far-field speech board <NUM> is simpler. The infrared receiving head assembly <NUM> comprises an infrared receiving head <NUM> and an infrared receiving head mounting plate <NUM>. The infrared receiving head mounting plate <NUM> is installed on the far-field speech support <NUM> and is connected to the buckle structure <NUM>. The infrared receiving head <NUM> is disposed on the infrared receiving head mounting plate <NUM>. The infrared receiving head <NUM> is disposed directly above the infrared reflective portion <NUM>.

The infrared reflective portion <NUM> and the transparent light guide plate <NUM> are both made of a transparent polycarbonate material. The transparent light guide plate <NUM> and the infrared reflective portion <NUM> are transparent. After an infrared signal enters the transparent light guide plate <NUM>, the infrared signal reaches the infrared reflective portion <NUM>. When the infrared signal reaches the reflective surface <NUM> of the infrared reflective portion <NUM>, that is, when the infrared signal reaches the high-gloss surface of the chamfer of the infrared reflective portion <NUM>, the infrared signal is reflected to the infrared receiving head <NUM> by the reflective surface <NUM>, i.e., the high-gloss surface (the reflective mirror surface) of the chamfer, so that the infrared receiving head <NUM> can receive a signal sent by a remote controller. That is, the transparent light guide plate <NUM> and the infrared reflective portion <NUM> of the far-field speech support <NUM> of the present disclosure function as lenses. This reduces the number of lenses and provides an installation space for the far-field speech board <NUM>, thereby facilitating installation of the far-field speech board <NUM> and avoiding a conflict between the far-field speech board <NUM> and a lens. Compared with a current method for installing the far-field speech board <NUM>, this method does not occupy space and is more aesthetically pleasing.

Please refer to <FIG>, in an embodiment, the far-field speech board installation portion <NUM> is provided with a plurality of first through holes <NUM>. The first through holes <NUM> are configured as a plurality of microphone holes of the far-field speech board <NUM>, which can transmit sound, thereby realizing a far-field speech function. Furthermore, when the far-field speech board <NUM> is installed in a front frame <NUM> in the prior art, a front of the front frame <NUM> needs to be provided with a plurality of sound holes, which affects appearance. Compared with the prior art, a method for installing the far-field speech board <NUM> of the present disclosure is more aesthetically pleasing.

Please refer to <FIG>, in a claimed embodiment, the buckle structure <NUM> comprises a locking plate <NUM> and a limiting plate <NUM>. Specifically, the locking plate <NUM> and the limiting plate <NUM> are oppositely disposed on the base <NUM>. The locking plate <NUM> is provided with a limiting groove <NUM> and a first limiting portion <NUM>. The limiting plate <NUM> is provided with a second limiting portion <NUM>.

Furthermore, the transparent light guide plate <NUM> is provided with a support portion <NUM>. The support portion <NUM> is disposed between the locking plate <NUM> and the limiting plate2034. The support portion <NUM> is integrally formed with the transparent light guide plate <NUM> and the infrared reflective portion <NUM>. The support portion <NUM> is also made of the transparent polycarbonate material, so that the infrared signal reflected by the infrared reflective portion <NUM> can be transmitted to the infrared receiving head assembly <NUM> through the supporting portion <NUM>. It should be noted that the far-field speech support <NUM> may be integrally injection-molded, and the far-field speech support <NUM> is made of the transparent polycarbonate material. When installing the infrared receiving head assembly <NUM>, the infrared receiving head mounting plate <NUM> is buckled on the locking plate <NUM> and the limiting plate <NUM>. The limiting groove <NUM> and the limiting plate <NUM> limit the infrared receiving head mounting plate <NUM> to move in front, rear, left, and right directions, the first limiting portion <NUM> and the second limiting portion <NUM> limit the infrared receiving head mounting plate <NUM> to move in an up-down direction, and the support portion <NUM> supports the infrared receiving head mounting plate <NUM>, so as to stably install the infrared receiving head mounting plate <NUM> on the far-field speech support <NUM>. Please refer to <FIG>, in an embodiment, the support portion <NUM> is disposed perpendicular to the transparent light guide plate <NUM>. When an external infrared signal is emitted toward the transparent light guide plate <NUM> (please refer to a direction of an arrow in <FIG>), the reflective mirror surface of the infrared reflective portion <NUM> reflects the infrared signal to the infrared receiving head <NUM>, so as to achieve a purpose of receiving a remote control signal.

Please refer to <FIG> and <FIG>, in an embodiment, the base <NUM> is provided with a first fixing portion <NUM>, and the far-field speech board installation portion <NUM> is provided with a second fixing portion <NUM>. The television <NUM> further comprises a front frame <NUM>. When the far-field speech support <NUM> needs to be installed, the far-field speech support <NUM> is inserted into the front frame <NUM> of the television <NUM>, and is buckled to the front frame <NUM> through the first fixing portion <NUM> and the second fixing portion <NUM>.

Please refer to <FIG>, <FIG>, and <FIG>, in an embodiment, the base <NUM> is provided with a plurality of third fixing portions <NUM>, and each of the third fixing portions <NUM> is provided with a second through hole <NUM>. The television <NUM> further comprises a source cover plate <NUM>. The second through holes <NUM> are screw holes. After the far-field speech support <NUM> is installed in the front frame <NUM>, the far-field speech support <NUM> is fixedly connected to the source cover plate <NUM> of the television <NUM> by screws through the third fixing portions <NUM>.

In the above, the present disclosure provides a far-field speech support with a lens function and an electrical device. The far-field speech support includes: a base, a far-field speech board installation portion disposed on the base and configured to install a far-field speech board, a transparent light guide plate disposed on a bottom side of the far-field speech board installation portion, a buckle structure disposed on the base and configured to install an infrared receiving head assembly, and an infrared reflective portion disposed corresponding to the transparent light guide plate and disposed below the infrared receiving head assembly. The far-field speech support is integrally formed, and the far-field speech support is made of a transparent polycarbonate material. When an infrared signal enters the far-field speech support, it passes through the transparent light guide plate, and then is reflected to an infrared receiving head through the infrared reflective portion. Therefore, the far-field speech support acts as a lens, which reduces the number of lenses. Furthermore, the far-field speech support provides an installation space for the far-field speech board, which facilitates installation of the far-field speech board.

Claim 1:
A far-field speech support (<NUM>) with a lens function, comprising:
a base (<NUM>);
a far-field speech board installation portion (<NUM>) disposed on the base (<NUM>) and configured to install a far-field speech board (<NUM>);
a transparent light guide plate (<NUM>) disposed on a bottom side of the far-field speech board installation portion (<NUM>);
a buckle structure (<NUM>) disposed on the base (<NUM>) and configured to install an infrared receiving head assembly (<NUM>); and
an infrared reflective portion (<NUM>) disposed corresponding to the transparent light guide plate (<NUM>) and disposed below the infrared receiving head assembly (<NUM>);
wherein the buckle structure (<NUM>) is disposed on a side of the base (<NUM>) away from the far-field speech board installation portion (<NUM>), and the buckle structure (<NUM>) comprises a locking plate (<NUM>) and a limiting plate (<NUM>) that are oppositely disposed on the base (<NUM>).