CN101355744A

CN101355744A - Method for preserving clock record content unit for short time current failure of mobile phone

Info

Publication number: CN101355744A
Application number: CNA2007100441485A
Authority: CN
Inventors: 王祖同
Original assignee: Shanghai Chenxing Electronics Science and Technology Co Ltd
Current assignee: Shanghai Chenxing Electronics Science and Technology Co Ltd
Priority date: 2007-07-24
Filing date: 2007-07-24
Publication date: 2009-01-28

Abstract

The invention discloses a method for saving clock log content unit of a mobile phone in short-time power-off, which is characterized in that a clock log content unit of the mobile phone is immediately saved in a memory of the mobile phone after the mobile phone is switched on, and the clock log content unit is a field formed by any combination of day, month or year, and second, minute or hour, as well as one day in a week, and is regularly input and is orderly written into the reserved space of the memory of the mobile phone. When the mobile phone is powered off suddenly and restarts in a short time, the reading and writing operation is used to obtain the current clock log content unit without resetting a clock. The method can save cost for a backup power supply battery or charging capacity for a clock component of the mobile phone, and even does not need to reset the clock under the condition of power-off for a short time.

Description

The method of preserving clock record content unit for short time current failure of mobile phone

Technical field

The present invention relates to a kind of mobile phone and preserve the method, particularly mobile phone of clock log content are preserved the clock log plereme under the short time powering-off state method.

Background technology

Along with the competition of mobile phone market more and more come fierce, make the mobile phone of exploitation have the market competitiveness, generally to start with from two aspects, the one, from the function of product, outward appearance, quality, can be recreational and after-sale service etc., the 2nd, from the integrated cost of product.In market competition today of homogeneity more and more, the otherness of product and cost usually are the competitiveness of certain mobile phone of decision, have determined the final and decisive juncture of mobile phone enterprise.Therefore, reducing cost is enterprise's profit-push the most effective maximized means.Concerning mobile phone, promptly enable to reduce some device cost or reduce by a device, also be a good news.In general initial mobile phone, all has two batteries, and one is standard cell, and another is that button cell one is the cell phone clock power supply.When mobile phone power-on, use standard cell to comprise that as mobile phone component clock unit powers, then use button cell to power during shutdown as clock unit, can not reset to guarantee shutdown or outage back cell phone clock.People utilized the effect principle short time when mobile phone cuts off the power supply that discharges and recharges of electric capacity to greatly reduce cost for the clock power supply of mobile phone afterwards.No matter being the price of button cell or electric capacity, is conspicuous to the influence of the additional cost of a mobile phone, can allow product lose cost advantage, thus the forfeiture competitiveness.

Summary of the invention

The objective of the invention is to overcome the defective of above-mentioned prior art, under situation, provide the method for preserving cell phone clock recorded content unit under a kind of short time powering-off state the backup battery of clock unit work.

The objective of the invention is to be achieved through the following technical solutions:

The method of cell phone clock recorded content unit is preserved in a kind of short time outage according to the present invention, in the method, cell phone clock recorded content unit is kept in the mobile phone EMS memory (FLASH or EPPROM).

Wherein, when start, the standard cell of mobile phone is the clock unit power supply, guarantees the clock unit operate as normal.

Wherein, the clock log plereme generally comprise by date, Hour Minute Second and week component 1,2,3,4,5,6, the field that one of Japan-China component constitutes.

Wherein, keep certain memory space for preserving cell phone clock recorded content unit in mobile phone EMS memory (EPPROM or FLASH), wherein capacity can guarantee to store 60 clock log pleremes at least.

Wherein, can carry out read-write operation to mobile phone clock log plereme memory space.

Wherein, behind the mobile phone power-on, time whenever after one minute, just automatically present clock recorded content unit is write successively the memory space of the cell phone clock recorded content unit of reservation, all write behind the address of full 60 clock log pleremes promptly after 1 hour, all wipe the reservation phone memory, recirculation writes present clock recorded content unit to corresponding address.

Wherein, mobile phone sudden power (fall, change SIM card, change artificial or unexpected shutdown such as battery), mobile phone present clock recorded content unit has been saved in the address of corresponding clock recorded content unit before the outage.

Wherein, start, mobile phone just automatically reading and saving in the cell phone clock memory space on the clock log plereme that once writes recently, the time error that causes in order to cut off the power supply, in the clock-unit of reading minute part being added a year n, revised clock log plereme is shown as present clock recorded content unit, was the cycle with 1 minute simultaneously, 60 times is a circulation, continues present clock recorded content unit is written to the cell phone clock memory space of reservation.Because be the short time outage, recommended value n can get 1.

In addition, the cell phone clock recorded content unit of reservation can comprise the date, Hour Minute Second, week component 1,2,3,4,5,6, one or more of Japan and China, cycle memory time can be regulated, and reserves clock log plereme space and cycle period and also can regulate as required, and the correction value of time error also can be regulated.

Positive progressive effect of the present invention is:

1, can save to the cell phone clock parts and carry out the button cell of reserve power supply or the cost of capacitor.

2, outage is for example fallen, is changed card, changes under the situation of battery in the short time, preserves user's present clock, need not to reset.

Description of drawings

Fig. 1 is the schematic diagram of preserving clock record content unit for short time current failure of mobile phone of the present invention.

Embodiment

Provide the present invention according to Fig. 1 below and under the situation of sudden power, preserve the example of user's present clock recorded content unit owing to changing SIM card.

As shown in the figure, step 1000 mobile phone power-on, step 1001, timing clock was the cycle with 1 minute, 60 times is a circulation, with reservation clock log plereme memory space, the step 1002 in the present clock recorded content unit write memory (Flash or EPPROM), because of changing the SIM card sudden power, but still can preserve user's present clock recorded content unit, need not to reset, until replacing the SIM card EO, with all the other according to time error value manual operation correction, and as the demonstration of present clock recorded content unit, return step 1000, normal operation.

Claims

1, a kind of method of preserving clock record content unit for short time current failure of mobile phone is characterized in that, recorded content unit is kept in the mobile phone EMS memory with cell phone clock.

2, the method for preserving clock record content unit for short time current failure of mobile phone according to claim 1 is characterized in that, described mobile phone EMS memory is Flash or EPPROM; The clock log plereme comprise date, Hour Minute Second and week component 1,2,3,4,5,6, the field that one of Japan-China component constitutes; At least have 60 memory addresss on described Flash or the EPPROM, a clock log plereme can be stored in each address.

3, the method for preserving clock record content unit for short time current failure of mobile phone according to claim 1 and 2, it is characterized in that, behind the mobile phone power-on, time is every just to write the mobile phone EMS memory memory space with current clock log plereme after one minute automatically successively, and all writing behind the address of full 60 clock log pleremes is refresh cycle.

4, the method for preserving clock record content unit for short time current failure of mobile phone according to claim 3 is characterized in that, cycle memory time can be regulated.

5, the method for preserving clock record content unit for short time current failure of mobile phone according to claim 3 is characterized in that, described internal memory is reserved the space of clock log plereme and can be regulated as required.

6, the method for preserving clock record content unit for short time current failure of mobile phone according to claim 3 is characterized in that, the cycle period of the clock log plereme of said write internal memory can be regulated as required.

7, the method for preserving clock record content unit for short time current failure of mobile phone according to claim 3 is characterized in that, because of the caused time error of cutting off the power supply, its correction value can be regulated.