Electronic newspaper broadcasting and receiving method based on frequency-modulation and amplitude-modulation broadcast

A technology of electronic newspapers and receiving methods, which is applied in the field of digital information transmission, can solve the problems that the transmitter cannot be directly used, the receiver is overthrown and reinvented, and occupied, so as to achieve the effects of improving publishing efficiency, reducing protection, and reducing costs

Inactive Publication Date: 2006-05-24
SOUTHEAST UNIV
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned new digital audio-visual-based broadcasting systems all need to be "reinvented": not only the receiver must be rebuilt, but the transmitter cannot be used directly, and even new frequency points must be enabled or occupy a wider frequency band

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
  • Electronic newspaper broadcasting and receiving method based on frequency-modulation and amplitude-modulation broadcast
  • Electronic newspaper broadcasting and receiving method based on frequency-modulation and amplitude-modulation broadcast

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The electronic newspaper digital transmission method based on AM / FM broadcasting is to edit the newspaper layout and content information (including text, graphics, images and animations, etc.), and add the necessary user address code or conditional access code (that is, only legal or Users who pay a fee can only receive it), which is combined with the encoded sound broadcast information (digital live broadcast or pre-recorded), and sent to figure 1 The digital baseband coded modulator in the dotted line box on the left, the principle and function of the digital baseband coded modulator are shown in "Backward Compatible AM ​​Broadcast Digital Transmission Method" (invention patent publication number: 1558560). The digitally coded and modulated signal is directly sent to the audio port of the existing analog AM (or FM) broadcast transmitter on the right, and the double-sided band amplitude modulation (or continuous wave FM) is completed and the power is amplified and then ...

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

Attaching necessary usersí» address code to electronic layout information of newspaper, the method combines the said information with digital coded sound broadcasting information and then sends information including digital text, sound and image etc. through present AM or FM broadcast channel and analog broadcast transmitter in relevant band. Through AM / FM radio with LCD, valid user of having conditional receiving code can selectively watch directly according to channels, subjects or contents, and listens digital broadcast of sound. Being as a method for subscribing and watching í«electroní» newspaper, the invention is downward compatible to current AM / FM broadcast transmitter, AM / FM broadcast channel, MW / SW / FM wave band radio set.

Description

technical field [0001] The present invention is based on the existing amplitude modulation (AM) / frequency modulation (FM) broadcast channel and the analog broadcast transmitter of the corresponding wave band to carry out digital transmission of newspaper electronic layout, using AM / FM with display screen (such as liquid crystal display) The electronic newspaper system that the radio directly selects to watch belongs to the technical field of digital information transmission. Background technique [0002] Traditional newspapers use paper as the printing medium, and the purchase of paper accounts for more than half of the cost of newspapers. In addition to consuming a huge amount of wood, newspaper printing also consumes a lot of materials such as electricity, ink, film, and PS plates. According to statistics, the domestic newsprint demand exceeded 3 million tons in 2004, and will reach 3.88 million tons in 2005. Therefore, the development of the newspaper industry is at the ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04H1/00H04H20/30H04B1/08H04B1/16H04N7/025
Inventor 吴乐南
Owner SOUTHEAST UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap