CN1489410A - Telephone number searching method for mobile communication termianl - Google Patents
Telephone number searching method for mobile communication termianl Download PDFInfo
- Publication number
- CN1489410A CN1489410A CNA031366716A CN03136671A CN1489410A CN 1489410 A CN1489410 A CN 1489410A CN A031366716 A CNA031366716 A CN A031366716A CN 03136671 A CN03136671 A CN 03136671A CN 1489410 A CN1489410 A CN 1489410A
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- Prior art keywords
- telephone number
- crc
- mobile communication
- telephone
- data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72469—User interfaces specially adapted for cordless or mobile telephones for operating the device by selecting functions from two or more displayed items, e.g. menus or icons
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/57—Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephone Function (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Using detected incoming telephone number can search information of user with identical telephone number in telephone directory quickly, and display the information on display screen. The method includes following steps. (1) Based on telephone number in PIM data (personal information management) in telephone directory, CRC is calculated and table is generated. (2) Calculating CRC of incoming telephone number. (3) Based on comparing CRC of incoming telephone number with CRC table, index of data possessing same CRC value in directory is picked up. (4) Based on index picked up (memory address with telephone number being saved on), relevant PIM information is read out and displayed on display screen.
Description
Technical field
The present invention is a kind of mobile communication terminal telephone number search method.It can utilize detected caller ID when incoming call, and retrieval has the user profile of same phone number in telephone directory book rapidly, and shows on display screen.
Background technology
Recently, for preventing the phone violence, implementing caller ID and showing service.So-called caller ID shows service, refers to a kind of convenient service, and it is shown in caller's telephone number on recipient's the mobile communication terminal LCDs (or caller ID terminal machine), also can affirmation not the time telephone number made.
Above-mentioned service not only can be used on ordinary telephone set, also can use on mobile communication terminal.For being attached to the caller identification device that uses on the regular phone machine, the telephone number that only shows the caller, but in mobile communication terminal, if detect caller ID, then combine with telephone directory function, the retrieval number identical with caller ID is presented at the address name of registering in the telephone directory book in telephone directory book.
Promptly, registration has PIM (personal information management in receiving comfortable telephone directory book, PERSONAL INFORMATION MANAGEMENT) during the user's of information phone, not to show telephone number on the display screen of terminating machine, but the user's of this telephone number of output registration name.As above the telephone number search function is different from the mode that the user directly retrieves in telephone directory book, it must utilize CLI (the Caller Line Identity that transmits in the moment of receiving calling, caller ID) information, therefore the user profile of registering in the retrieval telephone directory book need search method rapidly.
But, search method utilization in the past be the mode that in the telephone directory book that terminal inner is preserved, telephone number itself is directly compared, so the user who registers in the telephone directory book is many more, it is big more to retrieve the relative requirement with the time of required internal memory.
Below with reference to the flow chart of Fig. 1, illustrate based on the telephone number search method of CLI (caller ID) in the past.
At first, the user utilizes telephone directory book (Phone book) function to preserve pim data, it is (non-volatile in a kind of fast storage-NV that in fact this pim data preserves (S101), Non Volatile) in the read-only memory (ROM), under the state of terminating machine opening power, make telephone directory resident (S102) in random asccess memory (RAM).
Promptly, compare with the speed of read-only memory (ROM), the speed of random asccess memory (RAM) is faster, so, retrieve if reside at all telephone number datas that make telephone directory book under the state of random asccess memory, this can improve the retrieval rate of telephone number greatly, still, according to the difference of terminating machine, also some is directly retrieved at read-only memory (ROM).
Then, if receive phone, then directly compare (S103) detected caller ID and the telephone number that is stored in the telephone directory of random asccess memory, when detecting identical telephone number, from read-only memory, read the user profile of (S104) this telephone number, be shown on the display screen, and preserve (S105) this call-in message.
But there is a problem in above-mentioned mode in the past, and promptly the telephone directory book content is many more, and the internal memory that is used to retrieve is big more, and retrieval time is long more.Even all data are stored in random asccess memory, then the capacity of random asccess memory must increase, and also will increase data load to required the powering up of random asccess memory (Power Up) time.
Summary of the invention
For this reason, the present invention develops for the problem that solves as above in the past, purpose is to provide a kind of mobile communication terminal telephone number search method, it can utilize detected caller ID when receiving phone, and retrieval has the user profile of same phone number and is shown on the display screen from telephone directory book rapidly.
For achieving the above object, the technical solution adopted in the present invention feature is to comprise following four steps: first step is at the telephone number in the PIM that is stored in the terminating machine telephone directory book (the PERSONAL INFORMATION MANAGEMENT) data, calculates CRC (CRC) and generates table; Second step is to calculate the CRC of detected incoming call number (searching object telephone number) when receiving phone; Third step is the crc value of more above-mentioned CRC table and incoming call number, extracts the index of the data with identical crc value; The 4th step is the index (telephone number preserve storage address) according to said extracted, reads with the corresponding user's of telephone number PIM information and is shown on the display screen.
Feature of the present invention is: use the hashing (Hashing) based on CRC (Cyclic Redundancy Check), the telephone directory book that is stored in mobile communication terminal inside is retrieved, in order to improve telephone number retrieval rate based on CLI (caller ID), the CRC of the telephone directory book that is stored in terminating machine inside table is used as hash table, thereby improved required memory size and the time of telephone directory book retrieval.
As a reference, be mainly used in one of error detecting system of wrong control when originally the CRC at initial stage is transfer of data, but in the present invention, by binary bit (Binary) is changed, XOR (XOR) is handled to carrying out with the corresponding value of each telephone number, convert specific data (crc value) and preservation to, for these data being used for retrieval, use the data mode that constitutes a hash (Hashing) table.
Description of drawings
Fig. 1 is based on the telephone number search method flow chart of CLI (caller ID) in the past.
Fig. 2 is based on the telephone number search method flow chart of caller ID of the present invention.
Embodiment
Below, with reference to description of drawings useful embodiment of the present invention.
Fig. 2 is based on the telephone number search method flow chart of caller ID of the present invention.As shown in the figure, at the telephone number in the pim data that is stored in telephone directory book, calculate CRC and generate table (S201).
That is, in the past, when the terminating machine opening power, make the telephone number data of preserving in the read-only memory reside at random asccess memory, but in the present invention, by generating telephone number CRC table and reside at random asccess memory, thereby realized retrieving minimizing of required telephone number data capacity.
Then, the CRC of calculating (S202) detected incoming call number (searching object telephone number) when receiving phone, compare (S203) with the CRC table of the telephone number that resides at random asccess memory, extract the index that (S204) has the data of identical crc value.That is, utilize hash (Hashing) principle, a crc value and identical data are compared.
Then, utilize index (address), read (S205) actual data of preserving PIM information such as () user's names and be shown on the display screen, preserve (S206) this call-in message from read-only memory at the data of above-mentioned crc value unanimity.
Using method for above-mentioned CRC table specifies as follows: at first, state one 2 dimension array variable, in order to preserve a number identical and an one address 4 kinds with whole user's numbers of registering at telephone directory book (because of terminating machine different) number (crc value).
In an address (index) of above-mentioned variable, 4 numbers of a people are calculated crc value respectively, be stored in the 2 dimension arrays of above-mentioned statement.(algorithm that uses this moment is CRC-16.)
Above-mentioned CRC result of calculation is, utilize original well-known CRC_16_TABLE[256], with benchmark initial value (OxFFFF) is beginning, present telephone number is carried out XOR (XOR) calculation, will save as the particular value (2 dimensions are arranged variable) in a number zone in each address by the end value that this process obtains.
Then, all user's numbers according to telephone directory book, the data in the CRC table of aforementioned calculation and the crc value of searching object number (current call number) are all retrieved,, then sent back to index (telephone directory book address) it if there is consistent value.
But, respectively more whether before the unanimity, preferably check in each address of judging telephone directory book whether have the variable of data in these cases,, retrieval is carried out quickly so that can cross unwanted routine search program.
Then,, read the actual telephone number data (caller's name) that is stored in read-only memory, utilize the user interface (UI) of terminating machine to be shown on the display screen by the above-mentioned address of sending back to.
That is to say, calculate the crc value and the generation table of telephone number in the user profile that the present invention registers in telephone directory book, make it to reside at random asccess memory, if detect caller ID when receiving phone, then calculate the crc value of this caller ID, the CRC that is stored in the above-mentioned CRC table is used as hashed value, judge whether to preserve telephone number with identical value, then according to the index value of judging thus, from read-only memory, read user profile and be shown on the display screen.
As the above-mentioned explanation of doing, mobile communication terminal telephone number search method of the present invention has following effect, promptly can utilize detected caller ID when receiving phone, retrieval has the user profile of same phone number and is shown on the display screen rapidly in telephone directory book.
In addition, the present invention has the effect that the retrieval rate that uses the CRC hashing to improve telephone directory book also reduces telephone number retrieval required memory capacity simultaneously.
Claims (3)
1. mobile communication terminal telephone number search method of realizing by four steps, it is characterized in that comprising following four-stage: first step is at the telephone number in the PIM data that is stored in the terminating machine telephone directory book, and the calculating cyclic redundancy code check also generates table; Second step is to calculate the CRC of detected incoming call number (searching object telephone number) when receiving phone; Third step is the CRC value of more above-mentioned CRC table and incoming call number, extracts the index of the data with same loop redundant code check value; The 4th step is the index (telephone number preserve storage address) according to said extracted, reads with the corresponding user's of telephone number personal information management (pim) information and is shown on the display screen.
2. mobile communication terminal telephone number search method according to claim 1 is characterized in that: the CRC table of above-mentioned telephone directory book resides in the random asccess memory for improving retrieval rate.
3. mobile communication terminal telephone number search method according to claim 1 is characterized in that: the CRC table of above-mentioned telephone number and the CRC value of caller ID relatively be to utilize relatively CRC value of hash principle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020061066A KR20040031926A (en) | 2002-10-07 | 2002-10-07 | Telephone number searching method for mobile communication device |
| KR0061066/2002 | 2002-10-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1489410A true CN1489410A (en) | 2004-04-14 |
| CN1258156C CN1258156C (en) | 2006-05-31 |
Family
ID=34192021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031366716A Expired - Fee Related CN1258156C (en) | 2002-10-07 | 2003-05-23 | Telephone number searching method for mobile communication termianl |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20040031926A (en) |
| CN (1) | CN1258156C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101115092B (en) * | 2007-08-22 | 2012-02-01 | 深圳市中兴移动通信有限公司 | CDMA wireless terminal telephone number accurate matching method |
| CN108418746A (en) * | 2018-02-13 | 2018-08-17 | 论客科技（广州）有限公司 | A kind of mail synchronization method, device and computer readable storage medium |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11150597A (en) * | 1997-11-18 | 1999-06-02 | Sanyo Electric Co Ltd | Telephone system |
| KR20000026146A (en) * | 1998-10-17 | 2000-05-15 | 윤종용 | Method for generating telephone directory in digital mobile communication terminal having character recognition function |
| KR100566225B1 (en) * | 1998-12-10 | 2006-10-04 | 삼성전자주식회사 | Phonebook memory control device and method for mobile communication terminal |
| US6484250B1 (en) * | 2000-01-19 | 2002-11-19 | Qualcomm, Incorporated | Hash technique eliminating pointer storage to reduce RAM size |
| KR20040000182A (en) * | 2002-06-24 | 2004-01-03 | 주식회사 이투엠솔루션 | Searching apparatus and method for phone number |
-
2002
- 2002-10-07 KR KR1020020061066A patent/KR20040031926A/en not_active Application Discontinuation
-
2003
- 2003-05-23 CN CNB031366716A patent/CN1258156C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101115092B (en) * | 2007-08-22 | 2012-02-01 | 深圳市中兴移动通信有限公司 | CDMA wireless terminal telephone number accurate matching method |
| CN108418746A (en) * | 2018-02-13 | 2018-08-17 | 论客科技（广州）有限公司 | A kind of mail synchronization method, device and computer readable storage medium |
| CN108418746B (en) * | 2018-02-13 | 2020-06-12 | 论客科技（广州）有限公司 | Mail synchronization method and device and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1258156C (en) | 2006-05-31 |
| KR20040031926A (en) | 2004-04-14 |
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