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A kind of equipment and method for correcting time based on cdr

A kind of equipment and time-calibrating technology, applied to radio-controlled timers, broadcasting circuit devices, instruments, etc., can solve the problems of inability to broadcast real-time time and analog audio broadcasting inability to realize time signal transmission, etc.

Active Publication Date: 2018-07-31
HAIER BEIJING IC DESIGN
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional analog audio broadcasting cannot realize time signal transmission. It can only adopt artificial voice or synthetic voice to broadcast time signal to listeners in audio form, so that they can know the current time instantly.
However, the time broadcast in this way is only suitable for people to listen to, but it can hardly be used for time correction in electronic systems
In addition, the above method generally only broadcasts the time on the hour or the half hour, but cannot broadcast the instant time at any time or with high frequency.

Method used

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  • A kind of equipment and method for correcting time based on cdr
  • A kind of equipment and method for correcting time based on cdr

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Embodiment Construction

[0020] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0021] figure 1 It is a structural block diagram of a device for correcting time based on CDR according to an embodiment of the present invention. Such as figure 1 As shown, the device includes a trigger module, a CDR radio frequency module, a CDR analysis module, a CDR time comparison module, a time compensation module, and a local time module.

[0022] Next, the functions of each module in the device according to the embodiment of the present invention and the entire time calibration process will be discussed in detail.

[0023] The trigger module is used to trigger the entire timing process in various ways. For example, after receiving the trigger signal, an instruction can be sent to the CDR radio frequency module to start receiving the CDRCDR radio frequency code stream. The terminal may be various electronic ...

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Abstract

The invention relates to a device for correcting time based on China Digital Audio Broadcasting CDR, comprising: a CDR radio frequency module for receiving a CDR code stream; a CDR analysis module for parsing the received CDR code stream to obtain current time information a time compensation module, configured to compensate the current time information to obtain compensated time information; and a local time module, configured to replace the local time information contained therein with the compensated time information. The present invention utilizes the ability of the China Digital Radio (CDR) front-end system to broadcast real-time time signals at any time, and uses the real-time reception, analysis and adjustment of the time on the terminal to realize accurate and automatic electronic equipment / terminal school hours.

Description

technical field [0001] The present invention relates to a digital broadcasting system, in particular to a device and method for correcting time based on CDR. Background technique [0002] Digital broadcasting (Digital broadcasting) refers to the digitized audio signal, video signal, and various data signals, which are processed in a digital state by various encoding, modulation, and transmission. At the same time, digital broadcasting is also a broadcasting technology different from the traditionally known AM and FM. It transmits digital signals through ground transmitting stations to achieve the purpose of broadcasting and data information transmission. [0003] China Digital Radio (CDR), as an important part of my country's radio and television digitalization process, is the development direction of broadcasting digitization. It can overcome the shortcomings of traditional analog audio broadcasting that cannot realize time signal transmission. [0004] Traditional analog ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04H20/44G04R20/00
Inventor 邵军利
Owner HAIER BEIJING IC DESIGN