Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Audio and video system based on geographical information system

A geographic information system, geographic information technology, applied in the field of navigation and integrated systems and their control, can solve problems such as disturbing passengers to listen to audio

Inactive Publication Date: 2017-04-05
TIANJIN GUANRUILIN TECH DEV CO LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As mentioned above, in the conventional integrated navigation and A / V system, the audio signal is temporarily interrupted to output the guidance voice, so the disadvantage is that it disturbs the passenger to listen to the audio

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Audio and video system based on geographical information system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0015] In the present invention, in the process of outputting the audio signal, once the guidance voice of the navigation system is generated, the guidance voice and the audio signal are separated, and the speaker is assigned to output the guidance voice and the audio signal simultaneously. The guidance voice is output through a speaker adjacent to the driver, while the audio signal is output through a speaker adjacent to the passenger but not the driver. For example, a front speaker outputs a guidance voice while a rear speaker outputs an audio signal, or a driver's side speaker outputs only a guidance voice while the other speakers output an audio signal.

[0016] A detailed description is given below with reference to the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an audio and video system based on a geographical information system. The method includes the steps of image preprocessing, wherein a geographical information image is obtained and is partitioned into blocks according to the terrain rule in the geographical information image, and the terrain rule includes the terrain roughness degree; image transforming, wherein for each block, two-dimensional wavelet transform is used for transform processing, adopts biorthogonal wavelet and is decomposed into two-time one-dimensional wavelet transform to be processed, the two-time one-dimensional wavelet transform includes low-frequency data transform and high-frequency data transform, and the low-frequency data transform and high-frequency data transform are carried out in parallel; image coding, the image obtained after two-dimensional wavelet transform is quantified and encoded, and an ECBOT algorithm is adopted in coding. Calculation quantity of image processing is small, and operation speed is higher while image quality is not affected remarkably.

Description

technical field [0001] The present invention relates to an audio-video system based on a geographic information system, and more particularly, to a navigation and integration system and a control method thereof for preventing audio signals from being interrupted due to voice guidance of a navigation system. Background technique [0002] Currently, with the increase in the number of cars owned by each family, cars are becoming a necessity of life. As more time is spent in the car, there is a need to install an audio system in the car. In recent years, drivers have been or are paying attention to installing an audio / video system (hereinafter referred to as "A / V system") that combines an audio system and a video system to allow the driver to enjoy movies or television. At the same time, drivers have or are paying attention to installing navigation and telematics systems, which can measure their own location based on the Global Positioning System (GPS) to provide road guidance ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01C21/36
CPCG01C21/3629
Inventor 徐德才
Owner TIANJIN GUANRUILIN TECH DEV CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com