Audio-video system

Abstract

This case discloses an audio-visual system. The system includes a head-mounted display and at least one sound playback module. The head-mounted display includes processing circuitry and at least one connection interface. The sound playback module is detachably connected to the connection interface on the head-mounted display. The processing circuitry transmits audio signals to the sound playback module connected to the head-mounted display to play sound.

Description

Audio-visual system AUDIO-VIDEO SYSTEM Technical Field

[0001] This new invention is an audio-visual system for a head-mounted display. Prior Technology

[0002] With the rapid development of technology, people are absorbing information in increasingly diverse ways. To balance audio-visual effects with portability, head-mounted displays (HMDs) have emerged on the market. However, the hardware structures or modules used to play sound in most HMDs are fixed to the display (integrated structure) and cannot be removed or disassembled. This results in heavier HMDs, reduced flexibility in use, and consequently, a poor user experience. Summary of the Invention

[0003] This invention provides an audio-visual system including a head-mounted display and at least one sound playback module. The head-mounted display includes processing circuitry and at least one connection interface coupled to the processing circuitry. The sound playback module is detachably connected to the connection interface on the head-mounted display. The processing circuitry is configured to transmit sound signals to the sound playback module connected to the head-mounted display for sound playback.

[0004] Based on the above, the audio-visual system in this case does not require the hardware structure or module for playing sound to be fixedly configured on the head-mounted display. In this way, not only can the weight of the head-mounted display be reduced, but also the flexibility of use can be increased, thereby providing users with a better user experience.

[0005] To make the above-mentioned features and advantages of this case more apparent and understandable, specific embodiments are provided below, along with detailed descriptions in conjunction with the accompanying drawings. Simple Explanation of the Diagram

[0006] Figure 1 is a block diagram illustrating an audio-visual system according to an embodiment of the present invention. Figures 2A to 2C are schematic diagrams illustrating the appearance of an audio-visual system according to an embodiment of the present invention. Implementation

[0007] Referring to Figure 1, the audio-visual system 100 of this embodiment includes a head-mounted display 110 and two sound playback modules (speaker module 120 and headphone module 130) detachably connected to the head-mounted display 110. In Figure 1, the head-mounted display 110 includes a processing circuit 111, a first connection interface 112, a second connection interface 113, a microphone 114, and a memory 115. The processing circuit 111 is coupled to the first connection interface 112, the second connection interface 113, the microphone 114, and the memory 115. The processing circuit 111 is, for example, a central processing unit (CPU), or other programmable general-purpose or special-purpose microprocessors, digital signal processors (DSPs), programmable controllers, application-specific integrated circuits (ASICs), or other similar components or combinations thereof.

[0008] The first connection interface 112 is, for example, a pogo pin connector or a board to board connector, which allows the speaker module 120 to be plugged in (detachably connected).

[0009] The second connection interface 113 is, for example, an audio jack (3.5mm AUX port) or a Type-C port, which allows the headphone module 130 to be plugged in (detachably connected).

[0010] Memory 115 is, for example, any type of fixed or removable random access memory (RAM), read-only memory (ROM), flash memory, hard disk or other similar element or combination of these elements.

[0011] The head-mounted display 110 may also include a display, a camera (photosensitive element) and various sensors to display and capture images in front of the user, and to sense or track objects in front of the user, or even features such as the user's face and eyes. This invention is not limited thereto.

[0012] The speaker module 120 includes a first speaker 121 and a first connector 122. The first speaker 121 is coupled to the first connector 122. The first connector 122 is designed to be plugged into a first connection interface 112 for signal transmission.

[0013] The headphone module 130 includes a second speaker 131 and a second connector 132. The second speaker 131 is coupled to the second connector 132. The second connector 132 is configured to be plugged into a second connection interface 113 for signal transmission.

[0014] In this embodiment, the processing circuit 111 in the head-mounted display 110 can transmit the audio signal SND to the speaker module 120 and the headphone module 130 connected to the head-mounted display 110 to play sound. Specifically, when the first connector 122 of the speaker module 120 is plugged into the first connection interface 112 of the head-mounted display 110, the processing circuit 111 can transmit the audio signal SND to the first speaker 121 in the speaker module 120 via the first connection interface 112 to play the sound generated by the audio signal SND through the first speaker 121. When the second connector 132 of the headphone module 130 is plugged into the second connection interface 113 of the head-mounted display 110, the processing circuit 111 can transmit the audio signal SND to the second speaker 131 in the headphone module 130 via the second connection interface 113 to play the sound generated by the audio signal SND through the second speaker 131. Thus, the audio-visual system 100 can provide wired audio output.

[0015] It should be noted that since the speaker module 120 and the headphone module 130 are connected to the head-mounted display 110 through different connection interfaces, the audio-visual system 100 of this embodiment can be applied to the case where only one of the speaker module 120 and the headphone module 130 is connected to the head-mounted display 110, or it can be applied to the case where both the speaker module 120 and the headphone module 130 are connected to the head-mounted display 110 simultaneously. In other words, the head-mounted display 110 can play sound through one of the speaker module 120 and the headphone module 130, or it can play sound simultaneously through both the speaker module 120 and the headphone module 130.

[0016] The above design allows for modularization of the speaker and headphone modules. When a user wants to use the sound function or listen to music, they can plug one or both of the speaker module 120 and headphone module 130 into the head-mounted display 110 to play sound, according to their preference and needs. When the user does not want to use the sound function or listen to music, the speaker module 120 and headphone module 130 can be removed and detached from the head-mounted display 110. This not only reduces the weight of the head-mounted display 110 according to the usage scenario, making it more comfortable for the user, but also increases its flexibility, thereby providing a better user experience.

[0017] Additionally, the microphone 114 in the head-mounted display 110 can collect ambient sounds or human voices generated around the head-mounted display 110 and convert them into audio signals SRD, which are then transmitted to the processing circuit 111. The memory 115 can store preset audio signals SPD_1 to SPD_N. Here, N is a positive integer greater than 1. The preset audio signals SPD_1 to SPD_N may include, for example, various warning sounds, voices, and vehicle sounds.

[0018] The processing circuit 111 can analyze in real time to perform sound identification (e.g., voiceprint comparison) between the radio signal SRD and preset sound signals SPD_1 to SPD_N. When the radio signal SRD matches any of the preset sound signals SPD_1 to SPD_N, the processing circuit 111 can actively adjust the output parameters of the sound signal SND to execute an alert operation corresponding to the matching preset sound signal. For example, the alert operation includes reducing the volume of the sound playback module (speaker module 120 and headphone module 130), pausing the playback of the sound playback module, or causing the sound playback module to issue a corresponding alert message. The alert message may be, for example, a vibration, sound, light indicator, or a custom sound response for a specific sound source.

[0019] In a practical application example, when a user is playing a game at home wearing a head-mounted display 110, a family member suddenly calls the user's name. If the sound and content of the call have been pre-stored in memory 115 as one of the preset sound signals SPD_1 to SPD_N, the speaker module 120 and / or headphone module 130 connected to the head-mounted display 110 will lower the game volume and notify the user via voice that "family member is calling".

[0020] When a user is running outdoors while wearing the head-mounted display 110, and a police car or ambulance siren suddenly sounds nearby, if the siren has been pre-stored in memory 115 as one of the preset sound signals SPD_1 to SPD_N, the speaker module 120 and / or headphone module 130 connected to the head-mounted display 110 will pause the music and vibrate to alert the user, thus preventing an accident from occurring.

[0021] In one embodiment, the head-mounted display 110 further includes a first wireless transmission device 116 coupled to the processing circuit 111, the speaker module 120 further includes a second wireless transmission device 123 coupled to the first speaker 121, and the headphone module 130 further includes a third wireless transmission device 133 coupled to the second speaker 131. The first wireless transmission device 116, the second wireless transmission device 123, and the third wireless transmission device 133 include, for example, antennas. The first wireless transmission device 116 can wirelessly transmit with the second wireless transmission device 123 in the speaker module 120 and the third wireless transmission device 133 in the headphone module 130 through, for example, Infrared Data Association (IrDA) standards, the Internet (including cloud services), Bluetooth communication, Near Field Communication (NFC), or Wireless Fidelity (WiFi) communication. The processing circuit 111 can also wirelessly transmit the sound signal SND to the second wireless transmission device 123 in the speaker module 120 and the third wireless transmission device 133 in the headphone module 130 via the first wireless transmission device 116, so that the sound generated by the sound signal SND can be played through the first speaker 121 and the second speaker 131 respectively. In this way, the audio-visual system 100 can also output sound wirelessly.

[0022] The following examples illustrate the installation methods of the speaker module and headphone module. In Figure 2A, the first connection interface 210 of the head-mounted display 200 is located on the side of the head-mounted display 200. When the user is wearing the head-mounted display 200, the first connector of the speaker module 220 can be plugged into the first connection interface 210 to be installed (hung) on ​​the side of the head-mounted display 200 through the first connection interface 210. At this time, the first speaker 230 in the speaker module 220 can amplify the sound to share the sound source with people around.

[0023] In Figure 2B, the second connection interface 310 of the head-mounted display 300 is located on the side of the head-mounted display 300. The second connector of the headphone module 320 has a transmission line 330. When the user is wearing the head-mounted display 300, the second connector of the headphone module 320 can be plugged into the second connection interface 310 through the transmission line 330. At this time, the second speaker in the headphone module 320 can play sound, allowing the user to enjoy the audio source exclusively.

[0024] In Figure 2C, the second connection interface 410 of the head-mounted display 400 is located on the side of the head-mounted display 400. The second connector of the headphone module 420 has a transmission line 430, and the headphone module 420, for example, is combined with a speaker body to have a speaker function. When the user is operating the head-mounted display 400, the second connector of the headphone module 420 can be plugged into the second connection interface 410 through the transmission line 430. At this time, the speaker body combined with the headphone module 420 can amplify the sound to share the sound source with people around.

[0025] In one embodiment, an external speaker may be used instead of the headphone module 420 in FIG2C, as long as the external speaker conforms to the specifications of the second connection interface 410 (audio jack or Type-C port) in the head-mounted display 400.

[0026] In summary, this novel audio-visual system eliminates the need to fix the sound playback hardware or modules onto the head-mounted display. Users can then choose to use the sound function or listen to music via speakers and / or headphones, according to their preferences and needs. This not only reduces the weight of the head-mounted display but also increases usability, resulting in a better user experience.

[0027] 100: Audio-visual system 110, 200, 300, 400: Head-mounted displays 111: Processing Circuit 112, 210: First connection interface 113, 310, 410: Second connection interface 114: Microphone 115: Memory 116: First wireless transmission device 120, 220: Speaker Module 121, 230: First loudspeaker 122: First Connector 123: Second wireless transmission device 130, 320, 420: Headphone Module 131: Second speaker 132: Second connector 133: Third wireless transmission device 330, 430: Transmission lines SND: Sound signal SRD: Radio signal SPD_1~SPD_N: Preset audio signals

Claims

1. An audio-visual system, comprising: A head-mounted display includes a processing circuit and at least one connection interface coupled to the processing circuit; The device also includes at least one audio playback module detachably connected to the at least one connection interface on the head-mounted display, wherein the processing circuitry is configured to transmit an audio signal to the at least one audio playback module connected to the head-mounted display to play audio.

2. The audio-visual system as claimed in claim 1, wherein the at least one sound playback module includes a speaker module and an earphone module, the speaker module includes a first loudspeaker, the earphone module includes a second loudspeaker, and the at least one connection interface includes a first connection interface and a second connection interface.

3. The audio-visual system as claimed in claim 2, wherein the speaker module further includes a first connector coupled to the first speaker, and the headphone module further includes a second connector coupled to the second speaker, wherein when the first connector of the speaker module is plugged into the first connection interface of the head-mounted display, the processing circuit transmits the sound signal to the first speaker in the speaker module via the first connection interface, and when the second connector of the headphone module is plugged into the second connection interface of the head-mounted display, the processing circuit transmits the sound signal to the second speaker in the headphone module via the second connection interface.

4. The audio-visual system as claimed in claim 2, wherein the first connection interface is a spring pin connector or a board-to-board connector, and the second connection interface is an audio jack or a Type-C port.

5. The audio-visual system as claimed in claim 2, wherein the speaker module is mounted on the side of the head-mounted display via the first connection interface.

6. The audio-visual system as claimed in claim 2, wherein the head-mounted display further includes a first wireless transmission device coupled to the processing circuit, the speaker module further includes a second wireless transmission device coupled to the first speaker, and the headphone module further includes a third wireless transmission device coupled to the second speaker, wherein the processing circuit wirelessly transmits the sound signal via the first wireless transmission device to the second wireless transmission device in the speaker module and the third wireless transmission device in the headphone module, so as to play sound through the first speaker and the second speaker respectively.

7. The audio-visual system as claimed in claim 1, wherein the head-mounted display further includes a microphone coupled to the processing circuitry, the microphone being configured to collect an ambient sound or a human voice and convert it into an audio signal for transmission to the processing circuitry.

8. The audio-visual system as claimed in claim 7, wherein the head-mounted display further includes a memory coupled to the processing circuitry, the memory being configured to store a plurality of preset sound signals.

9. The audio-visual system of claim 8, wherein the processing circuit performs sound identification on the radio signal and the preset sound signals, and when the radio signal matches any of the preset sound signals, the processing circuit performs an alert operation corresponding to any of the preset sound signals.

10. The audio-visual system of claim 9, wherein the warning operation includes reducing the volume of the at least one sound playback module, pausing the playback of the at least one sound playback module, or causing the at least one sound playback module to issue a corresponding warning message.

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