JPH0315220B2 - - Google Patents

Description

[Detailed Description of the Invention] (1) Field of the Invention The present invention is directed to storing image information that is currently being provided sequentially or randomly when providing image information from a center to a terminal via a transmission path. The present invention relates to a search control system for image information that enables sequential or random storage and reading of image information.

(2) Description of the prior art A system has been developed that connects a terminal with a display function and a center via a transmission line such as a telephone network, and provides image information stored in the center to the terminal upon request from the terminal. . In such a system, in order to avoid having to enter the screen number again when requesting the provided image information from the terminal, the screen number is stored in advance at the center according to the instructions from the terminal. It has auxiliary search functions such as "memory registration" and "memory recall" so that it can be stored on the side and re-instructed by a simple input from the terminal. However, in the conventional function, the order of memory registration and memory recall is determined by the system, and operation from a terminal is not possible.
This will be explained using FIG. First, in Figure 1A, request the A screen and register it (input "[*] [memory]" in the captain system).
Next, in FIG. 1B, a request is made for the B screen and it is stored and registered. Repeat this until C as shown in Figure 1 C.
Memorize and register up to the screen. After that, when you request a memory recall (input "[memory]" in the captain system), the most recently registered memory will be displayed as shown in Figure 1 D.
When a screen is presented and a request is made to recall the memory, the screen is recalled in the order of memory registration, such as screen B as shown in FIG. 1E, screen A as shown in FIG. That is, the screen numbers currently being provided are stored in a stack such as a storage table on the center side in the order in which storage registration requests are received, for example from address 0 to address 1 to address 2, and so on.
Then, when a memory recall request is received, the stored screen number, etc. is read from the latest address (address 2 in the example in Figure 1) of the stack of the memory table, etc., and image information is searched according to this screen number.・
The address is then sequentially decremented.

With this type of control, not only does the user not know where the data has been stored, but also the
Even if you want to call up a screen (for example, screen A in Figure 1), you have to call up the screens stored and registered after screen A (screens B and C in the example in Figure 1).
It is impossible to directly call a specific screen,
Unnecessary center processing volume (mainly information search processing)
There is a problem that not only does this increase the search time required to obtain the required image information, but also the search time required to obtain the required image information increases.

(3) Purpose of the Invention In order to solve such problems, the present invention enables information input without parameters or with parameters when requesting memory registration/memory recall from a terminal, and sequentially performs memory registration/recall based on the instruction. Memory recall (hereinafter referred to as simple memory) and random memory registration/
It is possible to control memory retrieval (hereinafter referred to as specific memory), and will be described in detail below with reference to the drawings.

(4) Description of structure and operation of the invention FIG. 2 is a conceptual diagram of an image information providing system used in the present invention. 1 is a center for storing and managing information to be provided to terminals and providing information in response to requests from terminals, and includes a storage device 12 for storing image information, etc., and a storage device 12 for controlling this and for communicating with terminals. It is composed of a control device 11 that controls information transmission and reception. 2 is a transmission line connecting the center 1 and the center 1 and the terminal, and 3 is a terminal device having a display function.
In such a system, request information input from the terminal device 3 is sent to the center 1 through the transmission path 2.
When the input information is transmitted to the center 1 , the control device 11 analyzes the input information, searches for image information stored in the storage device 12 , and transmits the image information to the terminal device 3 via the transmission path 2 .

In addition, in such a system, when the terminal device 3 requests the provision of image information once again, the screen number is changed according to an instruction from the terminal device 3 so that the same screen number does not have to be input again. is stored in advance at the center 1, and the terminal device 3
It is preferable that the image be re-provided by a simple input from the user.

Figure 3 shows the control device 1 of the center 1 in Figure 2.
FIG. 1 is a conceptual diagram of processing tables for memory registration/memory recall included in FIG. Reference numeral 100 denotes a storage table that stores the screen number for which a storage registration request has been received from the terminal device 3, and includes a registration/non-registration plug area 101 that indicates whether or not the screen number is registered at the address, and a screen number storage area 102 that stores the screen number. Consists of etc. 110 is a registration address pointer register indicating the current address to be registered in the memory table 100, and 120 is a registration flag that is OFF.
130 is a call address pointer register indicating the current address to be called in the memory table 100, and 140 is a call counter that counts the number of consecutive calls in simple memory calls.

Each of these table registers is defined to have the following functions.

1 Registration flag All flags are "0" when connected to the terminal device 3 (initial state), and set to "1" when the screen number is stored in the address.

2 Registered address pointer The initial state is address 0, and the advancing direction is positive. However, the next address after address N (N is the maximum value of addresses in the storage table 100) is a circular address that returns to address 0.

3 Memory counter Maximum value is (N-1). Counting ends when all the registration flags become "1".

4 Call address pointer Initial state is address N. The walking direction is negative. However, the next address after address 0 is address N.
Let it be a circular address back to .

5 Call counter The initial state is 0. Reset by a search request other than a simple memory recall.

4 and 5 are flowcharts showing methods for controlling memory registration and memory retrieval, respectively, using processing tables as explained in FIG. control device 1
It is done in 1. Before explaining the process, the format of input information from the terminal device 3 will be defined as follows.

a Simple memory registration: [*] [memory] b Simple memory recall: [memory] c Specific memory registration: [*] [P] [memory] d Specific memory recall: [P] [memory] ([P]: memory (parameter indicating address of table 100) The operation of the storage registration process will be explained with reference to FIG. First, based on the input information format from the terminal device 3, it is determined whether the registration is simple memory registration or specific memory registration. In the case of simple memory registration, memory table 1 indicated by the contents of the register address pointer register 110
The registration presence/absence flag at address 00 (initial state is address 0) is checked, and when the flag is 0, that is, when registering at that address for the first time, the value of memory counter 120 is incremented, and the value of memory table 1 is incremented.
The screen number currently being provided is stored in the address of 00, and the registration presence/absence flag of the address is set to 1. The value of the memory counter 120 indicates the number of registered addresses in the memory table 100, and only when the value reaches N is a message indicating that the memory registration process is complete and that all the memory tables 100 have been registered. The information is notified to the terminal device 3. Also, if the registration presence/absence flag is 1, memory table 1
The current screen number is stored in the address 00, and a message indicating the completion of the storage registration process is notified to the terminal device 3. However, the message information described in this explanation is
Considering the user interface,
It is not necessarily necessary to notify the terminal device 3.
Thereafter, the contents of the registered address pointer register 110 are stored in the call address pointer register 130 regardless of the state of the registration flag. In other words, the most recently registered screen number is called up in the first memory recall request. Next, the contents of the registered address pointer register 110 are incremented, and the storage table 100 to be registered next is set.
Set the address of . In the case of specific memory registration, the parameter value input from the terminal device 3, that is, the corresponding address value of the memory table 100, is stored in the registered address pointer register 110, and the registration presence/absence flag at the corresponding address of the memory table 100 is checked. Registration flag is 0
When , the value of the storage counter 120 is incremented, and when it is 1, it is left unchanged. Next, the memory table 10
After storing the current screen number at the address of 0, the registration presence/absence flag is set to 1, and a message indicating the completion of the storage registration process is notified to the terminal device 3. Finally, similarly to simple memory registration, register address pointer register 110
The address of the storage table 100 to be registered next is set by incrementing the contents of the address.

Next, the operation of memory recall processing will be explained with reference to FIG. First, the contents of the call address pointer register 130 set at the time of simple storage registration are saved to be saved as initial values. Next, based on the format of the input information from the terminal device 3, it is determined whether it is a simple memory recall or a specific memory recall. In the case of a simple memory recall, first the value of the call counter 140 is incremented and then checked to determine whether N or more, that is, all of the memory table 100 has been recalled. If the number is N or more, message information to that effect is notified to the terminal device 3 in order to prevent the same information from being repeatedly provided periodically. If it is less than or equal to N, check the registration presence/absence flag at the address in the memory table 100 indicated by the call address pointer, and if the flag is 0, increment the contents of the call address pointer register 130 and update the memory table indicated by the content. Check the registration flag for address 100. On the other hand, if the flag is 1, image information corresponding to the screen number is searched from the storage device 12 according to the screen number stored at the address in the storage table 100, and the terminal device 3
Provide to. Furthermore, when a memory recall request is made continuously from the terminal device 3, the above operation is repeated.
If the request is for something other than memory recall, the call counter 14
0, and also sets the initial value saved in the call address pointer register 130 in preparation for the next memory call request. Also,
In the case of a specific memory call, the parameter value input from the terminal device 3, that is, the corresponding address value in the memory table 100, is stored in the call address pointer register 130, and the registration presence/absence flag at the corresponding address in the memory table 100 is checked. When the registration presence/absence flag is 0, the terminal device 3 is notified of message information indicating that it has not been registered, and when the flag is 1, it is stored according to the screen number stored at the address in the storage table 100. device 12
The image information corresponding to the screen number is searched from and provided to the terminal device 3. Thereafter, in preparation for simple memory recall processing, the contents of the call address pointer register 130 are incremented, and the value of the call counter 140 is set to 1. This is to allow continuous (N-1) simple memory recall processing. Furthermore, similar to the simple memory recall process, when a memory recall request is made continuously from the terminal device 3, the above operation is repeated.
If the request is for something other than memory recall, the call counter 14
0, and also sets the initial value saved in the call address pointer register 130 in preparation for the next memory call request.

Here, the registration presence/absence flag and the memory counter 12
0 and the call counter 140 have been described so as to enable message notification of the state of the center 1, it is clear that the absence of these does not affect the basic operation.

A specific example of the operation described above will be explained using FIG. 6. First, when simple memory registration is requested twice from the terminal device 3, as shown in A and B of the same figure,
By processing P1 and processing P2, storage table 1
00 address 0 and address 1 respectively (for example, 10000 for address 0 and 10000 for address 1)
20000) is stored, and the initial state S1 passes through state S2 and becomes state S3. Next, request memory registration using address i as a parameter in specific memory registration,
Subsequently, when a simple memory registration request is made, the state is changed to S3 through processes P3 and P4, as shown in FIG. 6C and D.
passes through state S4 and enters state S5. At this time, the contents of the registered address pointer register 110 are (i+
2) The value of the storage counter 120 is 4, and the contents of the call address pointer register 130 are (i+1).
The value of call counter 140 is zero. Here, when a simple call request is made, the image information of screen number 40000 is searched and provided by process P5 shown in FIG.
State S5 becomes state S6. Next, set the parameters to 3
When a specific call request is made, since the registration presence/absence flag at address 3 is 0, message information to that effect is notified by process P6 shown in FIG. The content of 130 is 2.
Thereafter, when a simple call is requested, the process P7 shown in FIG. 6G is performed. That is, although the registration presence/absence flag of address 2 in the memory table 100 is 0, the contents of the call address pointer register 130 are automatically incremented and the memory table 100 is
The image information of screen number 20000 stored at address 1 is searched and provided. And state S7
changes to state S8.

(5) Explanation of Effects As explained above, according to the present invention, currently provided image information can be stored sequentially or randomly according to instructions from a terminal, and can be recalled sequentially or randomly as needed. By making it possible for the user to not only be aware of where the information has been stored, but also to be able to directly search for a specific screen without having to search for extra information. Furthermore, since specific memory and simple memory can be mixed, there is an advantage that the user interface is improved.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the operation of the conventional storage retrieval control system, Fig. 2 is a conceptual diagram of the image information providing system, Fig. 3 is a conceptual diagram of processing tables used in the present invention, and Fig. 4 is a storage registration process. FIG. 5 is a flowchart of the memory retrieval process, and FIG. 6 is an explanatory diagram of a specific example of the operation. DESCRIPTION OF SYMBOLS 1...Center, 2...Transmission path, 3...Terminal device, 11...Control device, 12...Storage device, 10
0... Memory table, 101... Registration flag area, 102... Screen number storage area, 110...
Registration address pointer register, 120...Storage counter, 130...Calling address pointer register, 140...Calling counter.

Claims (1)

[Scope of Claims] 1. In a system that transmits and provides image information from a center that stores image information to a terminal via a transmission line, in accordance with a storage request from the terminal, a storage request is made for screen identification information for the screen currently being provided. a first means for storing in a specific position according to parameters at the time, or automatically storing in successive positions if there are no parameters; and a screen stored by the first means in accordance with a call request from a terminal. a second means for reading identification information from a specific position or sequential positions depending on the presence or absence of a parameter at the time of a call request; and a method for searching and providing image information based on the screen identification information read by the second means. An image information search control method comprising: third means for controlling. 2. In the image information search control method described in claim 1, the first means for storing the screen identification information being provided in accordance with a request from the terminal detects that the entire storage area is used. , an image information search control method characterized by having means for notifying a terminal of this. 3. In the image information search control method described in claim 1, the second means for sequentially or directly reading from a specific position in accordance with a request from a terminal is provided when no screen identification information is stored in the corresponding position. An image information search control system characterized by having means for detecting this and notifying a terminal of this.