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Equipment for time calibration based on CDR and method

A kind of equipment and time-calibrating technology, applied to radio-controlled timers, broadcasting circuit devices, instruments, etc., can solve the problems that analog audio broadcasting cannot realize time signal transmission, and cannot broadcast instant time, etc.

Active Publication Date: 2015-11-18
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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  • Equipment for time calibration based on CDR and method
  • Equipment for time calibration based on CDR and method

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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. like 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 ter...

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Abstract

The present invention relates to equipment for time calibration based on China digital radio (CDR). The equipment comprises a CDR RF module for receiving a CDR stream, a CDR parsing module for parsing the received CDR stream and obtaining current time information, a time compensation module for compensating the current time information to obtained compensated time information, and a local time module for replacing local time information with the compensated time information. According to the equipment and the method, the ability of broadcasting the signal of broadcast instant time at any time of a China digital radio (CDR) front-end system is used, the time is timely received, parsed and adjusted on a terminal, and the accurate and automatic time calibration of electric equipment / terminal is realized.

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 Applications(China)
IPC IPC(8): H04H20/44G04R20/00
Inventor 邵军利
Owner HAIER BEIJING IC DESIGN