US-20260124989-A1 - LAMP SYSTEM FOR MOVING VEHICLES

Abstract

A lamp system for a vehicle including an audio module to output sound, a light source module including at least one light source to output an image, and a control module to control output of the light source module and the audio module based on image data and control signals received from the vehicle. The control module transmits an video signal and an audio signal that is synchronized with the video signal, based on the image data and the control signals, to control the output of the light source module and the audio module, respectively.

Inventors

• Myeong Je Kim

Assignees

• HYUNDAI MOBIS CO., LTD.

Dates

Publication Date

20260507

Application Date

20250805

Priority Date

20241107

Claims (10)

1. 1 . A lamp system for a vehicle, the system comprising: an audio module configured to output sound; a light source module including at least one light source and configured to output an image; and a control module configured to control output of the light source module and the audio module based on image data and control signals received from the vehicle, wherein the control module is configured to transmit a video signal and an audio signal that is synchronized with the video signal, based on the image data and the control signals, to control the output of the light source module and the audio module, respectively.
2. 2 . The lamp system of claim 1 , wherein the control module comprises: a deserializer configured to receive serialized image data, convert the serialized image data into parallel data, and generate a pixel clock (PCLK), a horizontal synchronization signal (HSYNC), and a vertical synchronization signal (VSYNC) for the parallel data based on the control signals; and a processor configured to receive the pixel clock (PCLK), the horizontal synchronization signal (HSYNC), and the vertical synchronization signal (VSYNC) from the deserializer, detect a start and an end of the image data, and transmit the video signal and the audio signal based on the detection.
3. 3 . The lamp system of claim 2 , wherein the processor is configured to recognize the start and the end of the image data based on a variation pattern of the horizontal synchronization signal (HSYNC) and the vertical synchronization signal (VSYNC).
4. 4 . The lamp system of claim 3 , wherein the processor is configured to pre-store timing information of the horizontal synchronization signal (HSYNC) and the vertical synchronization signal (VSYNC), and to recognize completion of transmission of the image data based on no additional signal variation being detected at a predetermined timing.
5. 5 . The lamp system of claim 3 , wherein the deserializer is configured to generate a lock signal (LOCK) upon a start of input of the pixel clock (PCLK) to the processor, and the processor is configured to start receiving the image data upon the lock signal (LOCK) transitioning to a high (H) state.
6. 6 . The lamp system of claim 5 , wherein the deserializer is configured to generate an interrupt signal upon the lock signal (LOCK) transitioning to the high (H) state, prompting the processor to start receiving the image data.
7. 7 . The lamp system of claim 2 , wherein the processor is configured to output a specific audio content as the audio signal, the specific audio content being selected based on a clock frequency of the video signal.
8. 8 . The lamp system of claim 7 , wherein the processor is configured to output a white or black frame as the video signal during an initial predetermined number of frames.
9. 9 . The lamp system of claim 2 , further comprising a communication line connecting an output terminal for the image data and the processor, wherein the processor is configured to select a specific audio content based on index (INDEX) information received through the communication line, and to output the selected content as the audio signal.
10. 10 . The lamp system of claim 9 , wherein the processor is configured to receive volume information or sensor information related to the audio through the communication line, and to change volume status information displayed externally based on the received volume information or senso information.

Description

CROSS-REFERENCE TO RELATED APPLICATION The present application claims priority to Korean Patent Application No. 10-2024-0157295, filed on November 7, 2024, the entire contents of which is incorporated herein for all purposes by this reference. BACKGROUND Field of the Invention The present invention relates to a lamp system for a moving vehicle, and more particularly, to a sound-linked lamp system provided in a moving vehicle. Description of the Related Art VESS stands for Virtual Engine Sound System, and it is a system designed to address the issue where pedestrians and nearby vehicles may have difficulty detecting an eco-friendly moving vehicle, such as an electric vehicle, due to its low noise. VESS emits artificially generated sounds when the vehicle is in motion, thereby helping the surrounding environment detect the approach of the vehicle. In 2022, a regulation related to road surface information display was enacted, which includes four symbols intended to provide warnings to the driver. Specifically, the symbols convey meanings such as slippery road surface warning, collision warning, wrong route warning, and lane departure warning. However, with conventional communication lamps, it may be difficult for pedestrians to communicate effectively using only visual information. According to a comparison of information reception capacity by sensory organs, vision and hearing account for approximately 83% and 11%, respectively, indicating that these are the most dominant senses. Therefore, there is a need for a communication lamp capable of enhancing information delivery by simultaneously outputting an audio signal synchronized with the video signal emitted from a conventional communication lamp. Moreover, in the case of conventional communication lamp control systems, only a video signal interface is implemented. Accordingly, to output sound in synchronization with video, a technology is needed that can control both video and audio using only the video signal. Documents of Related Art (Patent Document 1) Korean Patent Publication No. 10-2021-0105611 ("Vehicle and Control Method Thereof," Publication Date: August 27, 2021) SUMMARY The present invention has been devised to solve the above problems, and it is an object of the present invention to provide a lamp system for a moving vehicle capable of outputting sound. In order to solve the above problems, a lamp system for a vehicle according to various embodiments of the present invention includes an audio module configured to output sound, a light source module including at least one light source and configured to output an image, and a control module configured to control output of the light source module and the audio module based on image data and control signals received from the vehicle. The control module is configured to transmit a video signal and an audio signal that is synchronized with the video signal, based on the image data and the control signals, to control the output of the light source module and the audio module, respectively. In addition, the control module may include a deserializer configured to receive the serialized image data, convert the serialized image data into parallel data, and generate a pixel clock (PCLK), a horizontal synchronization signal (HSYNC), and a vertical synchronization signal (VSYNC) for the parallel data based on the control signals, and a processor configured to receive the pixel clock (PCLK), the horizontal synchronization signal (HSYNC), and the vertical synchronization signal (VSYNC) from the deserializer, detect a start and an end of the image data, and transmit the video signal and the audio signal based on the detection. In addition, the processor may be configured to recognize the start and the end of the image data based on a variation pattern of the horizontal synchronization signal (HSYNC) and the vertical synchronization signal (VSYNC). In addition, the processor may be configured to pre-store timing information of the horizontal synchronization signal (HSYNC) and the vertical synchronization signal (VSYNC), and to recognize completion of transmission of the image data based on no additional signal variation being detected at a predetermined timing. In addition, the deserializer may be configured to generate a lock signal (LOCK) upon a start of input of the pixel clock (PCLK) to the processor, and the processor may be configured to start receiving the image data upon the lock signal (LOCK) transitioning to a high (H) state. In addition, the deserializer may be configured to generate an interrupt signal upon the lock signal (LOCK) transitioning to the high (H) state, prompting the processor to start receiving the image data. In addition, the processor may be configured to output a specific audio content as the audio signal, the specific audio content being selected based on a clock frequency of the video signal. In addition, the processor may be configured output a white or black frame as the video sign