JPH11163999A - Telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a telephone set in which a user can retrieve a telephone directory with an easy operation without troubles. SOLUTION: This device has a storage part 18 for storing the names and the telephone numbers of the other parties by coordinating them in advance and an operation part 19 consisting of plural keys to which letters different from one another are allocated. When the key pushing down for a more than specified time is received by the operation part 19, the name including the letters allocated to the key are retrieved from the storage part 18 and the retrieved name is displayed on a display part 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone having a telephone directory function, and more particularly to an improvement in telephone directory retrieval.

[0002]

2. Description of the Related Art In recent years, telephones have been provided with various functions. Most telephones have a telephone directory function. A telephone having a telephone directory function has a writable and readable memory for storing data such as the name of the other party (personal name, company name, etc.) and its telephone number. If the data of the other party that the user frequently calls is registered in this memory, then the data can be displayed on the display or transmitted by a predetermined operation of the user.

[0003] Here, the procedure of a user operation will be described. As a simple method, first, a telephone directory key (a call key depending on the model) is pressed. Then, a part of the data stored in the memory, for example, one name and telephone number is displayed. Next, when the next screen display key 305 or the previous screen display key 306 is pressed, other data is displayed. Therefore, the user repeatedly presses the next screen key or the previous screen display key to display desired data. The order of data display when repeatedly pressed is the order of registration, the Japanese syllabary, the alphabetical order, and the like.

The above procedure is effective when the number of registered data is small. However, when the number of registered data is large, there is a problem that it takes time to display desired data. This problem is prominent in recent telephones because hundreds of data units can be registered. Therefore, conventional telephones have been provided with a function of narrowing down and searching a memory. As an operation procedure for using this function, first, a telephone directory key is pressed to set a telephone directory search mode. A message such as "What is the name to search for?" Is displayed on the display. Then, next, when the user inputs the first letter of the name to be displayed from the numeric keypad, the corresponding data is searched from the memory, and one of the data is displayed. After that, the data desired by the user is displayed from the data narrowed down by pressing the next screen key or the previous screen key.

Since the data is narrowed down and displayed by the narrowing-down search function, the data can be searched even when a large number of data are registered.

[0006]

However, the conventional telephone directory function based on a narrow search has a problem that operability is poor. The telephone has many functions in addition to the telephone directory function. For this purpose, a plurality of function keys for user operation are provided, and in some cases, one key may also serve as a plurality of function keys. Under such conditions, it is difficult for the user to understand which key is the telephone directory key, and the user takes time to perform the operation.

[0007] Further, after switching to the telephone directory mode, the user must further press a key for narrowing down the search, which makes it difficult for the user to remember the search operation procedure. In view of the above problems, it is an object of the present invention to provide a telephone that allows a user to search a telephone directory with a simple operation without trouble.

[0008]

In order to solve the above-mentioned problems, the telephone according to the present invention is provided with a storage unit for storing the name of the other party and the telephone number in association with each other and different characters from each other. A telephone having an operation unit including a plurality of keys, wherein when the operation unit receives a key press for a predetermined time or more, a search is performed to search the storage unit for a name including a character assigned to the key. Means, and display means for displaying the searched name. According to this configuration, the search means executes the search by a simple operation of the user pressing and holding one key, and the display means displays the search result.

[0009] Further, the display means may update the display so as to display an undisplayed name among the search results by the search means when an operation for updating the display content is received by the operation unit. The telephone may include transmitting means for transmitting a call using a telephone number corresponding to the name when an operation for instructing selection of a displayed name is received by the operation unit. The assigned key may be a numeric key to which at least one of kana and alphabet is assigned.

[0010] The storage unit further stores a group type in association with the name, the key is assigned a group type, and the search unit operates the key unit when the operation unit receives the key press again. May be searched for a name corresponding to the group type assigned to.

[0011]

FIG. 1 is a block diagram showing a configuration of a mobile phone according to an embodiment of the present invention. In the figure, the telephone includes a radio unit 11, a modem 12, a TDMA (Tim
e Division Multiple Access) processing unit 13, D / A, A
It comprises a / D conversion unit 14, an audio processing unit 15, a speaker 16, a microphone 17, a storage unit 18, an operation unit 19, a display unit 20, and a control unit 21.

The radio unit 11 generates a local oscillation frequency signal that determines a carrier wave frequency to be transmitted and received.
Locked Loop (Frequency Synthesizer) 11b and a radio frequency (RF (Radio Frequen
cy)) signal to an intermediate frequency (IF (Intermediate Frequenc
y)) RF-to-baseband signal conversion via signal
It comprises an IF section 11a and an RF / IF section 11c for converting a baseband signal to a high frequency at the time of transmission.

The modem 12 has a π / 4 shift QPSK (Quadrature Ph) between the radio section 11 and the TDMA processing section 13.
This is a modem that performs modulation and demodulation using ase shift keying). The TDMA processing unit 13 divides one baseband signal into eight time slots per 5 ms,
TDMA for time-division multiplexing of bidirectional 4 channels by allocating 4 slots for uplink and 4 slots for downlink
(In the case of PHS). In addition, another time division multiplexing method may be used. In each carrier for uplink and downlink, one baseband signal is divided into 6 time slots per 40 ms, and 6 slots are assigned to uplink and 6 slots to downlink. Thereby, the bidirectional six channels may be time-division multiplexed (in the case of a PDC (Personal Digital Cellular) system half rate), or may be time-division multiplexing using two uplink slots and two downlink slots. (In the case of full rate).

The audio processing unit 15 performs input / output of an audio signal through a speaker 16 and a microphone 17 and amplification of the audio signal. The storage unit 18 stores a telephone directory table in a memory such as an EEPROM. The telephone directory table is a set of a plurality of telephone directory records including items of registration numbers, names, telephone numbers, and group numbers, and is registered by the user for each telephone directory record. FIG. 2 shows an example of a telephone directory table stored in the storage unit 18. In the example of FIG. 1, one line indicates one telephone directory record, and the total number of registered telephone directory records is fifteen. The registration number in the first column is
001, 00 in the order of registration.
The numbers are numbered 2, and so on. The names and telephone numbers in the second and third columns are based on user registration, and store the name of the person making the call, the name of the company, and the telephone number. The group number in the rightmost column is also a result of user registration, and is a classification number assigned by the user by classifying each telephone directory record into groups such as company relations and friend relations.

The operating unit 19 allows the user to search the telephone directory table, display the name and telephone number, make a call,
It consists of a plurality of keys for instructing processing such as registration in the telephone directory table. FIG. 3 shows an overview of the operation unit 19.
In the figure, an operation unit 19 includes a call key 30 for calling.
1. End key 302 for disconnecting the line or terminating the operation, numeric key 303, search key 30 for displaying the next screen or moving the cursor
4 Among them, the ten key 303 and the search key 304 will be described below.

Numeric keys 303 are used for inputting a telephone number at the time of calling, registering in a telephone directory table, and instructing retrieval of the telephone directory table. As shown in FIG. 3, numeric keys, kana and alphabets are assigned to each key of the ten keys 303. For example, number key 2 is "2"
In addition, "K" and "ABC" are indicated, which means that a key line (Kakikukeko) and A, B, C are assigned to this key.

When searching the telephone directory table, the ten key 30
When any one of the keys 3 is pressed for a predetermined time or more (for example, 2 seconds or more), the instruction is received by the control unit 21 as a telephone directory table search instruction, and the character or number assigned to the pressed key is used as a search key. The book table is searched. In the present embodiment, hereinafter, pressing a key for a predetermined time or more is referred to as “long pressing”.

On the other hand, pressing of a key within a predetermined time (for example, less than 2 seconds) is accepted by the control unit 21 as input of a telephone number at the time of making a call or registration in a telephone directory table. The search key 304 includes a next screen display key 305 and a cursor movement key 306. The next screen display key 305 is
When the button is pressed during the search of the telephone directory table, the control unit 21 accepts the operation as switching the screen display of the display unit 20 to the next screen.

When the cursor movement key 306 is pressed during the search of the telephone directory table, it is accepted as an operation of moving the cursor displayed together with the name list by the control unit 21 down one line. The display unit 20 is a liquid crystal display panel. A name list, a telephone number, a key input by a user, a radio wave state, a battery state, and the like searched by the control unit 21 from the telephone directory table are displayed. Fig. 4 (a)
(D) shows a display example of the display unit 20. In FIG. 4A, 401 indicates a radio wave state, and 402 indicates a battery state. Reference numeral 403 denotes a telephone directory record retrieved from the telephone directory table, and three names are displayed. The cursor is placed on the second “Kikuko”, and the characters are highlighted. When the cursor is moved down one line by pressing the cursor movement key 306 of the operation unit 19,
It is displayed as shown in FIG.

The name display is switched by the next screen display key 305, and the display example switched to the next screen is shown in FIG. When the call key 301 or a display switching key (not shown) is pressed in a state where a plurality of names are displayed, the registration number and the telephone number are displayed on the display unit 20 together with the name which has been highlighted up to that time. . For example,
When the call key is pressed in FIG.
At (0), the same figure (d) is displayed.

The control section 21 is constituted by a microcomputer having a built-in ROM and RAM, and controls the telephone by executing various programs in the ROM. The control unit 21 receives a key press of the operation unit 19 as an input. At this time, the control unit 21 measures the time during which the key is kept pressed, and performs a later-described predetermined process depending on whether or not the measured time is equal to or longer than a predetermined time, that is, whether or not the key is long pressed.

The control unit 21 includes a work memory for sorting and holding the telephone directory records retrieved from the telephone directory table by the control unit 21 and two flag memories. The two flag memories include a value of a telephone directory mode flag M indicating whether or not a telephone directory mode (non-phone directory mode) and a search mode flag F indicating whether the mode is an index search mode or a group search mode. And a value respectively. The control unit 21 rewrites the values of the flags M and F to 0 or 1 according to the state at that time. The flag values are: flag M = 1 in phonebook mode, flag M = 0 in non-phonebook mode, and flag F = index search mode.
0, the flag F = 1 in the group search mode. Here, the index search in the index search mode indicates that a telephone directory record is searched by referring to the first letter of the name of the telephone directory table, and the group search refers to the group number of the telephone directory table by referring to the group number of the telephone directory table. Indicates that the record is searched.

The control unit 21 mainly performs the following processing in accordance with the combination of the values of these two flags M and F, the pressed time of the pressed key of the operation unit 19, and the type of the pressed key. Do. (1) Search processing (2) Display processing (3) Outgoing processing (4) Normal telephone processing Of these, (4) is in the non-phonebook mode, that is, when the phonebook mode flag M = 0, This is a process performed by the control unit 21 when a key press within a predetermined time is received. For example, it refers to processes conventionally provided in telephones, such as answering machine recording, telephone number input, and calling using the input telephone number. Description of (4) is omitted, and (1) to (3) will be described in detail below.

(1) Searching process When the control unit 21 receives any one of the long presses of the ten keys 303, if the mode is the non-phonebook mode (M = 0) until then, the control unit 21 switches the mode to the phonebook mode. Mode (M
= 1), and performs a search process of the telephone directory table in the index search mode. If you accept any of the long presses on the numeric keypad 303 when you are already in phonebook mode,
After switching the value of the search mode flag F, a search process of the telephone directory table is performed. In other words, when the search mode up to now is the index search mode (F = 0), the search mode is switched to the group search mode (F = 1). Do.

Hereinafter, the search processing will be described in detail using a specific example of the search results in FIG. The telephone directory table stored in the storage unit 18 is as shown in FIG. When the control unit 21 is in the non-phonebook mode (M = 0) or is in the phonebook mode (M = 1) and is in the group search mode (F = 1), the control unit 21 controls
When a long press of the key is accepted, the index search mode (F =
In step 0), a search process based on an index search is performed. Specifically, the initials of the name are lines from the telephone directory table of FIG. 2,
A, B, C, that is, a telephone directory record of a character string assigned to the two keys is searched. Then, the control unit 21
As shown in (a), record numbers are assigned in the order of the searched records and stored in the working memory. Further, in the index search mode, the names of the searched records are sorted so as to be in the order of the Japanese syllabary, and the contents stored in the working memory are rewritten and held as shown in FIG. 5B.

The control section 21 is in the telephone directory mode (M = 1) and the search mode is the index search mode (F = 0).
, When a long press of the ten key 303 is received, a group search mode (F = 1) is entered to perform a search process by group search. More specifically, a telephone directory record whose group number is 1 is searched from the telephone directory table of FIG. The control unit 21 adds a record number to the searched record and stores the record in the work memory. The contents of the working memory at this time are shown in FIG.

(2) Display Processing The control unit 21 performs the search processing and the telephone directory mode (M =
1) The display described below is performed on the display unit 20 according to each of the cases where the next screen display key 305 or the cursor movement key 306 is pressed during the middle. After the search processing, the control unit 21 sets the first three telephone directory records stored in the work memory, that is, the record number 0
The records of 01 to 003 are read and the names of those records are displayed on the display unit 20.

When receiving a press of the next screen display key 305 during the telephone directory mode, the control section 21
The subsequent three records of the displayed record are read out and displayed on the display unit 20. For example, on the display unit 20,
When the next screen display key 305 is pressed in a state where the names of the telephone directory records having the record numbers 001 to 003 are displayed, the control unit 21 causes the telephone directory records having the record numbers 004 to 006 to be continued. Displays the name.

Cursor movement key 306 during telephone directory mode
Is received, the control unit 21 moves the position of the cursor displayed on the display unit 20 at that time one line down and displays it. If the cursor position is on the third line, the cursor moves to the first line by pressing the cursor movement key 306. (3) Outgoing Call Processing In the telephone directory mode (M = 1), when the press of the call key 301 is received, the control unit 21 reads a record corresponding to the name highlighted by the cursor at the time of the press from the working memory, The display unit 20 displays the registration number, name, and telephone number. At the same time, a call is made using the telephone number.

The operation of the telephone according to the present invention configured as described above will be described below. FIG. 6 shows the control unit 2
1 is a flowchart showing a schematic process performed in accordance with a combination of the values of the mode flags M and F, the pressed time of the pressed key of the operation unit 19, and the type of the pressed key.

In the flow charts of FIGS. 6 to 9, when a key is pressed, the control unit 21 regards it as an interruption, exits the processing up to that point, and returns to S601. The control unit 21 receives a key press from the operation unit 19 (S
601), it is determined whether or not the press is a long press of the numeric key 303 (S602). If the press is a long press, the value is rewritten according to the values of the mode flags M and F at that time, or Settings are made (S604, S605). That is, the telephone directory mode flag M = 0 (when in the non-phone directory mode, M = 1 (telephone directory mode) is rewritten, and the search mode flag F = 0 (index search mode) is set (S605).
On the other hand, when the phonebook mode flag M = 1 (phonebook mode), if the search mode flag F = 0 (index search mode) at that time, it is rewritten to F = 1 (group search mode), and the search mode flag F = 1 (group search mode), rewrite F = 0 (index search mode) (S60)
4).

After rewriting and setting the mode flags M and F values, the control unit 21 performs a search process according to the mode flags M and F values and the type of the pressed numeric key 303 (S60).
6), display processing of the search result is performed (S607). When the control unit 21 determines that the key press from the operation unit 19 is not a long press (S602: No), the telephone directory mode flag M
= 0 (non-phonebook mode) (S608: Ye
s) The normal telephone processing is performed (S610).

At S608, the telephone directory mode flag M =
If it is 1, processing (key-specific processing) corresponding to the type of the pressed key is performed (S609). FIGS. 6 to 8 show the search processing, display processing, and key-specific processing in the above flowcharts.
This will be described below using the flowchart of FIG. FIG. 7 is a flowchart showing the search processing of FIG.

The control unit 21 determines whether to perform an index search or a group search based on the search mode flag F value (S701). As a result of the determination, when it is determined that the group search is to be performed, the control unit 21 reads a telephone directory record whose group number matches the number of the numeric key pressed on the numeric keypad 303 from the telephone directory table of the storage unit 18. The control unit 21 adds the record number R (R = 001, 002,...) To the read record and stores the record in the working memory (S704, S705).

If it is determined in step S701 that an index search is to be performed, the control unit 21 searches the telephone directory record in which the first letter of the name matches the character assigned to the numeric key pressed by the numeric keypad 303. , From the telephone directory table of the storage unit 18. Then, a temporary record number is added in the read order and stored in the working memory (S702). Further, the control unit 21 sorts the records in alphabetical order and alphabetical order in S702, and adds a record number R (S703, S705).

After performing the processing for each search mode as described above, the control unit 21 performs the initial setting for the display processing (S
706). That is, the variables R and C used in the display processing are set to 1. Here, variable R means a record number, and variable C means a cursor position. FIG. 8 is a flowchart showing the display processing of FIG.

The control section 21 determines whether or not the value of the variable R exceeds the total number of telephone directory records (S801), and if so, sets R to 1 (S802). The control unit 21 refers to the value of the variable R and determines that the record number is R, R +
1, the telephone directory record of R + 2 is read, and its name is displayed on the display unit 20. Then, referring to the value of the variable C, the name of the line indicated by the value is highlighted (cursor display) (S
803).

FIG. 9 is a flowchart showing the key-by-key processing of FIG. When receiving the press of the next screen display key 305 from the operation unit 19 (S901), the control unit 21 adds 3 to the value of the variable R (S902). Then, the display processing of FIG. 8 is performed (S607). By adding 3 to the variable R, the control unit 21 updates the display on the display unit 20 with reference to the value.

When the control unit 21 receives the depression of the cursor movement key 306 from the operation unit 19 (S904), it adds 1 to the value of the variable C (S905). Then, display processing is performed in the same manner as when the next screen display key 305 is pressed (S60).
7). By adding 1 to the variable C, the control unit 21 updates the cursor display on the display unit 20 with reference to the value. Here, the value of the variable C is one of 1, 2, and 3. In S905, when the result of adding 1 becomes 4, the value of the variable C is returned to 1.

The control unit 21 operates the call key 3
When the press of 01 is received (S906), the telephone number is read from the record corresponding to the name highlighted by the cursor at that time, and a call is made using the telephone number (S907). At this time, the control unit 21
Then, the registration number and the telephone number are displayed together with the name.

After the calling process, the control section 21 sets the phonebook flag M = 0 (non-phonebook mode) and cancels the phonebook mode (S908). Upon receiving the press of the end key 302 from the operation unit 19 (S909), the control unit 21 sets the telephone directory flag M = 0 (non-phone directory mode) and cancels the telephone directory mode (S908).

As is apparent from the above description, the present invention can achieve the object of providing a telephone capable of searching the telephone directory with a simple operation without the user having to take time. In the present embodiment, the configuration is a mobile phone, but the configuration may be a home phone or a PHS phone. In the present embodiment, the next screen display key 30
When 5 is pressed, three new records in the working memory of the control unit 21 are displayed, and when the cursor movement key 306 is pressed, the cursor is moved down by one line. The operation of the control section 21 is not limited to this, and may be, for example, as follows.

Hereinafter, the next screen display key 305 and the cursor movement key 306 will be referred to as a down key 305 and an up key 306, respectively, for convenience. The control unit 21
It is assumed that the contents of the work memory are as shown in FIG. The control unit 21 stores the telephone directory record group (FIG. 10A) retrieved from the storage unit 18 in the working memory,
The display unit 20 displays the names of the records with the registration numbers 001, 002, and 003. When the down key 305 or the up key 306 is pressed in this state, the control unit 21 determines whether the pressing is a long press.

If it is determined that it is not a long press, the control unit 2
1 is a down key 3 as shown in FIG.
If the number is 05, move the cursor down one line (→
), If the key is the up key 306, the cursor is moved up by one line (→ in the figure) and displayed. Further, when the pressing of the down key 305 is received in a state where the cursor is on the third line (the same figure), the control unit 21 erases the display of the names of the registration numbers 001, 002, 003 displayed up to that point. , The names of the registration numbers 004, 005, and 006 are displayed on the display unit 20, and the cursor is displayed on the first line (FIG. 6). When the press of the up key 306 is received while the cursor is displayed on the first line (FIG. 3), the control unit 21 erases the display of the names of the registration numbers 004, 005, and 006 displayed up to that point. Then, the names of the registration numbers 001, 002, and 003 are displayed, and the cursor is displayed on the third line (FIG. 3).

If it is determined that the down key 305 or the up key 306 has been pressed for a long time, the control unit 21 proceeds to FIG.
As shown in FIG. 7, if the pressed key is the down key 305, the display of the names of the registration numbers 001, 002, and 003 displayed so far is deleted, and then the registration numbers 004, 005, and 0 are deleted.
06 is displayed (→ in the figure). If the upper key 306 is pressed, the names displayed so far are deleted from the display unit 20, and the names of the registration numbers smaller than those registration numbers are displayed. That is, registration numbers 004, 005, 006
Is displayed, the registration number 001, 00
The name of 2,003 is displayed (→ in the figure).

Here, the cursor display at the time of long press is as follows.
No matter which line the cursor is on on the previous screen,
The new display screen displays the cursor on the first line. For example, if the down key 305 is pressed while the cursor is on the second line as shown in the figure, the figure is displayed, and if the down key 306 is pressed while the figure is displayed, And FIG.

[0047]

The telephone according to the present invention is a telephone having a storage unit for storing in advance the other party's name and telephone number in association with each other and an operation unit consisting of a plurality of keys to which different characters are assigned. A search unit that searches the storage unit for a name including a character assigned to the key when a key press for a predetermined time or longer is received by the operation unit; and a display unit that displays the searched name. It is comprised including.

According to this configuration, when the user performs a telephone directory search, the search and search can be performed simply by performing a simple operation of pressing a key for a predetermined time or longer, that is, a long press of a key to which a character to be searched is assigned. The result is displayed. Therefore, the user has substantially performed the operation of switching to the telephone directory mode and the operation of designating a character for narrowing down the search by a simple operation of long pressing one key, so that the telephone directory search is extremely easy. There is an effect that can be executed.

Further, in the telephone according to the present invention, the display means updates the display so as to display an undisplayed name among the search results by the search means when an operation for updating the display content is received by the operation unit. It is configured. According to this configuration, in addition to the above effects, when there are more search results than the number of names that can be displayed on the display means, the user can sequentially refer to the search results by updating the display.

Further, the telephone according to the present invention is provided with transmitting means for transmitting a call using a telephone number corresponding to the name when an operation for instructing the selection of the displayed name is received by the operation unit. According to this configuration,
Since a call is made using the telephone number of the other party whose name is displayed as a result of the search, there is an effect that when a call is made to the other party using the telephone directory, the call can be made with a simple operation in a short time.

Further, the telephone of the present invention is configured such that the keys to which the characters of the operation unit are assigned are numeric keys to which at least one of kana and alphabet is assigned. According to this configuration, the user can execute the search by a simple operation of pressing and holding one key on the numeric keys provided in any telephone.

Further, in the telephone of the present invention, the storage unit further stores a group type in correspondence with a name, the key is assigned a group type, and the search unit presses the key again by the operation unit. When received, a name corresponding to the group type assigned to the key is searched. According to this configuration, when the name and the telephone number are stored as a group in the storage unit, the user causes the group search to be executed by a simple operation of long-pressing and re-pressing one key for specifying a specific group. be able to.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a telephone according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a telephone directory table stored in a storage unit 18.

FIG. 3 is a schematic view of an operation unit 19;

4A to 4D show display examples of the display unit 20. FIG.

FIG. 5 is a diagram illustrating an example of storage contents of a working memory;

FIG. 6 is a flowchart illustrating a schematic process of a control unit 21;

FIG. 7 is a flowchart showing a search process of FIG. 6;

8 is a flowchart showing the display processing of FIG.

FIG. 9 is a flowchart showing a key-based process of FIG. 6;

FIG. 10A is a diagram showing the contents of a work memory; FIG. 4B is a diagram showing a display on the display unit 20 when the down key 305 and the up key 306 are pressed. (C) is a diagram showing a display on the display unit 20 when the down key 305 and the up key 306 are pressed for a long time.

[Explanation of symbols]

 Reference Signs List 11 radio unit 11a RF / IF unit 11b PLL frequency synthesizer unit 11c RF / IF unit 12 modem 13 TDMA processing unit 14 D / A, A / D conversion unit 15 audio processing unit 16 speaker 17 microphone 18 storage unit 19 operation unit 20 display Unit 21 control unit

Claims (5)

[Claims] 1. A telephone having a storage unit for storing a name of a partner and a telephone number in association with each other and an operation unit including a plurality of keys to which different characters are assigned. When a key press for more than a predetermined time is received, a search unit for searching the storage unit for a name including a character assigned to the key, and a display unit for displaying the searched name. Phone to do. 2. The display device according to claim 1, wherein, when an operation for updating the display content is received by an operation unit, the display unit updates the display so as to display a name that is not displayed among the search results by the search unit. Item 1. The telephone according to Item 1. 3. The telephone according to claim 1, further comprising: a transmitting unit that transmits, when an operation for instructing the selection of the displayed name is received by the operation unit, using a telephone number corresponding to the name. Item 1. The telephone according to Item 1. 4. The telephone according to claim 3, wherein the keys to which the characters of the operation unit are assigned are numeric keys to which at least one of kana and alphabet is assigned. 5. The storage unit further stores a group type in association with a name, the key is assigned a group type, and the search unit receives a key press again from the operation unit. 2. The telephone according to claim 1, wherein a name corresponding to the group type assigned to the key is searched.