JP3481893B2 - Portable telephone device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone device, and more particularly to a technology for searching and displaying a telephone directory function capable of registering image information. 2. Description of the Related Art Conventional portable telephone devices have names,
It has a telephone directory function in which a plurality of telephone numbers and other attached personal information are registered in correspondence with each other (registered data), and a series of information is quickly read out as necessary. With this telephone directory function, it is possible to make a telephone call without looking at another medium such as a paper telephone directory or an address book. In addition, this phone book function can compare and search the called number notified from the other party based on the registration data of the portable telephone device when a call is received, and display the corresponding name information. This allows the user to know the person who called before answering the call. [0003] As an example of a portable telephone device, a portable video telephone device capable of handling image information in particular can transmit and receive voice and image at the same time, so that it is possible to have a conversation while watching the image sent from the other party. . This portable videophone device can store a received image during a call as it is, or can store an image captured by a camera built in the portable videophone device as it is. In a portable videophone device capable of storing image information as described above, the stored image data can be handled as additional information of registration data in a telephone directory. Thereby, when searching for personal information using the telephone directory, it is possible to search by looking at the image information, and at the time of an incoming call, by displaying the image information corresponding to the called number together with the name information, It is possible to more intuitively understand the calling party. [0005] Normally, image data has a larger data amount than character information. Therefore, in a portable videophone device capable of handling image information, a captured image is converted into a JPEG (Join) image.
(Photographic Expert Group) to reduce the amount of image data and allow more images to be stored. On the other hand, as a method of searching for necessary information using the telephone directory, a method of directly searching by inputting information (name or address) related to a calling party,
There is a method of searching while checking registered data one by one. In any case, if the searched information does not correspond to the purpose, the search is sequentially performed until the desired information can be extracted. For example, the user presses a key for opening a telephone directory to enter a telephone directory mode, and inputs a part of the name of a partner to be searched to execute a search process. The closest information among the registered data is displayed as the search result. Generally, registration data is sorted based on information such as names, so if the displayed search result does not correspond to the purpose, by pressing the up and down scroll keys, Since the registered data that is located is sequentially displayed, the user can search for the data corresponding to the purpose while viewing the displayed contents. However, in a telephone directory of a portable videophone device, it is necessary to display and output attached image data in addition to character information such as a name and a telephone number. Unlike the portable telephone device in which the registered data of the book has only text information, the image information cannot be immediately displayed and output in response to the search operation for displaying the registered data in sequence. As described above, the amount of image data is larger than that of character information as described above.
By performing an encoding process such as this, the data amount is reduced and stored. Therefore, it is necessary to perform a decoding process on the display output and output the image, and it takes time to decode and display the image information in addition to the time required to display the character information. The load associated with the decryption process may appear as a load on operability, such as "the key search does not move to the next search until the image of the search once determined is displayed". is there. This raises a problem that light operability cannot be obtained, particularly when searching sequentially and sequentially based on the sort information based on the name information or the like. On the other hand, in response to the key press, only data which does not become a burden on the key operation such as character / symbol information which is registered data in the telephone directory is displayed first, and data which becomes a load on the key operation such as image information is displayed. With regard to, operability that is easy for the user to use for continuous search is ensured by starting and displaying an image display process (decoding / display) after an elapse of an arbitrary time after the key is pressed. However, after an elapse of an arbitrary time (timer processing) after pressing the key, image display processing (decoding / display)
Is set to start and display, if the next key press is input after the elapse of this arbitrary time, that is, during the image decoding process, the process of stopping the image decoding process in parallel with the screen display for this key press Must be performed.
As a result, there is a problem that the control unit receives an excessive load, and it is not possible to secure light operability. The above contents will be described with reference to FIG. In the figure, the vertical axis indicates “delay time from input of a key signal to the start of decoding of an image associated with a search result (timer activation time)”, and the horizontal axis indicates “interval time of key signal (time of click interval)”. The thick line Y2 represents the “set delay time until the start of the image decoding process”, and Y3 represents the time from when the key is pressed until the timer elapses and the image is decoded and displayed on the screen. Note that the section Y3-Y2 represents "time required for image decoding / display processing". Also, the position where the set delay time (Y2) until the start of the image decoding process is represented by the horizontal axis (time of the click interval) is X2, and after the key is pressed, the timer elapses and the image decoding process is performed. A position where the time until display (Y3) is represented by the horizontal axis (time of the click interval) is defined as X3. First, the key signal input interval (X) is X2
If it is earlier (X0 ≦ X <X2), the next key signal will be input before the set delay time (Y2) until the start of the image decoding process expires. In this case, image decoding / display is performed. Since no processing is performed, only the processing associated with the next key signal input is performed. Next, the key signal input interval (X) is X3
If it is later (X> X3), the set delay time (Y2) until the start of the image decoding process expires, and
Since the next key signal is input after the display processing is completed, only the processing associated with the next key signal input is performed in this case as well. Finally, the key signal input interval (X) is X
If it is later than 2 and earlier than X3 (X2 ≦ X ≦ X3), the set delay time (Y2) until the start of image decoding processing expires, and the next key signal is input during image decoding / display processing. Therefore, it is necessary to stop the decoding / display processing when the key signal is input. Also, if the input timing of the key signal continuously occurs frequently in this section, the load due to the stop processing is applied every time the key signal is input, and the operability in the search and the accompanying display is significantly deteriorated. Different. According to a first aspect of the present invention, there is provided a portable telephone device storing character information such as a name and a telephone number and image information corresponding to the character information. Operating means for inputting an operation instruction for the telephone directory search, a measuring means for measuring an input interval of the operating means, and the operating means And control means for varying a decoding process start time of image information corresponding to the search result in accordance with the input interval of the search result. This makes it possible to easily display image information in a continuous search. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the same code | symbol is used for the location which shows the same structure. FIG. 1 is a basic configuration diagram of telephone directory processing of a portable videophone device according to one embodiment of the present invention. In FIG. 1, 1 is a telephone directory sort information unit, 2 is an operation input unit, 3 is a control processing unit, 4 is a telephone directory character information storage unit, 5 is a display data processing unit, 6 is a character information display output unit,
Reference numeral 7 denotes a display output unit, 8 denotes a telephone directory image information storage unit, 9 denotes an image decoding processing unit, 10 denotes an image information display output unit, and 11 denotes a decoding delay calculation processing unit. Next, the operation will be described. In response to a search request from the operation input unit 2, the control processing unit 3 searches the registered data based on the telephone directory sort information 1, and reads the character information from the telephone directory character information storage unit 4 and displays the display data. Processing is performed by the processing unit 5 and displayed on the character information display output unit 6 of the display output unit 7. If there is an image associated with the search result, a delay timer for starting decoding of the image is started.
When the delay timer expires, the image information is read from the telephone directory image information storage unit 8, decoded by the image decoding processing unit 9, and output to the image information display output unit 10. At this time, the decoding delay operation processing section 11
The control processing unit 3 calculates the delay time until the start of the decoding / display processing of the image based on the operation signal input interval from the CPU, and sets the activation time of the timer based on the delay time. FIG. 2 is a graph showing a key signal input interval-decoding start delay time of the portable videophone device according to one embodiment of the present invention. In FIG. 2, the vertical axis is “delay time from input of a key signal to the start of decoding of an image associated with a search result (timer activation time)”, and the horizontal axis is “interval time of key signal (time of click interval)”. , And the bold line indicates “a set delay time until the start of the image decoding process”. Normally, a plurality of registered data is confirmed (searched) by scrolling display or continuous switching display like a telephone directory function.
In such a case, once the search is started, a key input (scrolling or switching instruction) is frequently performed one after another at regular intervals until the target registration data is found. If the certain interval in this phenomenon is X2, it is considered that there is a high probability that the interval time of the key input during the search occurs near X2.
If the probability becomes lower as the value becomes 1, X4, it can be expressed as distribution a (this diagram is a simplified diagram). Next, this probability distribution will be replaced with the delay time (timer activation time) on the vertical axis. At this time, the time corresponding to the fixed interval (X2) is Y3, and the times corresponding to X1 and X4 that are considered to have low probability are Y1 and Y4, respectively.
Then, it can be expressed as distribution b. Next, a variable delay time according to an embodiment of the present invention will be described based on the above description. First, as mentioned above,
Assuming that keys are input one after another at intervals of X2,
Unless the image decoding start time is at least longer than Y3, a stop process of the image decoding process occurs at the time of the next key input. In addition, since the input is not always performed at the interval of X2, there is a margin of time (Y
Hold 2). Next, as an exception to the above assumption, the interval between key inputs during retrieval is very slow, and the interval at which image decoding can be sufficiently performed before the next key input is X3 or more. In this case, it is sufficient to immediately perform the image decoding process on the key input. However, in order to secure the operability on the assumption that the next key input occurs suddenly, a certain delay (Y
2) is provided. When the above phenomenon is assumed, how to give a delay time is expressed by the following equation. X _WAIT = X + Y2 (1) (X ≦ X3) X _WAIT = Y2 (2) (X> X3) The case where this variable delay time is set will be examined. First, when a key is input at the largest click interval (X2), the delay time is X2 + Y2, and when the next key input interval is less than X2 + Y2, the image decoding process has not been performed yet. Therefore, if the key input interval is less than X2 + Y2, the user can immediately respond to the key input, and if the key input interval is X2 + Y2 or more, it is determined that the search has been confirmed and an image is displayed. Next, the click interval is increased (X1)
In this case, the delay time is X1 + Y2, and there is an effect that the time until the start of image decoding (that is, the time until the image is displayed) is shorter by X2-X1 than X2. That is, the display of the image information at the time of the determination is made faster in proportion to the click interval. In the case where the interval between key inputs during the search is very slow and the image can be sufficiently decoded before the next key input (X3 or more), the delay time is constant as Y2, Only when there is a next key input at an interval less than Y2, the key input is immediately responded. Otherwise, images are displayed one by one. This assumes a case where a search is performed while checking each image. As described above, when searching continuously at high speed, the probability of stopping decoding of an image is extremely low because the delay time until the start of decoding is slower than the search interval. On the other hand, when searching slowly, the decoding / display is completed before the next key input by making the delay time before decoding start shorter than the search interval, so that the probability of stopping image decoding is extremely low. . Thus, the operability in the search is ensured, and the display of the image associated with the search result is not delayed more than necessary. As described above, according to the portable telephone device of the present invention, the delay time until the start of image decoding / display processing is changed based on the input interval of the key signal in the search. This makes it possible to drastically reduce the process of stopping the image decoding process, which becomes an operation load at the time of search,
As a result, light operability at the time of retrieval can be ensured.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a basic configuration diagram of a telephone directory process of a portable videophone device according to an embodiment of the present invention. FIG. 2 is a graph showing a key signal input interval-decoding start delay time of the portable videophone device according to one embodiment of the present invention. FIG. 3 is a graph showing a key signal input interval-decoding start delay time of a conventional portable videophone device. [Description of Signs] 1: Phonebook sort information section 2: Operation input section 3: Control processing section 4: Phonebook character information storage section 5: Display data processing section 6: Character information display output section 7: Display output section 8: Telephone directory image information storage unit 9: image decoding processing unit 10: image information display output unit 11: decoding delay calculation processing unit

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G06F 17/30 H04B ^7/ 24-7/26 H04M 1/00 H04M 1/24-1/62 H04M 1/66-1 / 82 H04M 11/00-11/10 H04Q 7/00-7/38

Claims (1)

(57) [Claims] 1. A portable type having a telephone directory function for storing character information such as a name and a telephone number and image information corresponding to the character information and capable of searching the stored contents. In the telephone device, an operation unit for inputting an operation instruction of the telephone directory search, a measurement unit for measuring an input interval of the operation unit, and a decoding process of image information corresponding to a search result according to the input interval of the operation unit A portable telephone device, comprising: control means for varying a start time.