JP3607429B2 - Information service receiving apparatus and information service receiving method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an information service receiving apparatus and an information service receiving method for receiving information provided by multiplex broadcasting using broadcast waves or the Internet.
[0002]
[Prior art]
In recent years, interactive services using a telephone line as a communication medium have been actively performed. The interactive service includes online shopping where products can be purchased at home and personal computer communication for exchanging information using character data. In the future, when a movie or TV program is requested, services such as video-on-demand are scheduled to provide the selected program to each recipient individually.
[0003]
You can also join the Internet, a global network, from home. By participating in the Internet, information exchange using an electronic mail or a WWW (World Wide Web) system can be realized on a global scale. The WWW system transfers data written in a language called HTML (Hyper Text Markup Language) using HTTP (Hyper Text Transfer Protocol). The transferred data can be displayed graphically by a WWW browser such as Mosaic. Online shopping using this WWW system, information provision, advertisement, etc. are also being implemented.
[0004]
Furthermore, text multiplex broadcasting, which is an information providing service using TV broadcast waves, is also performed. Interactive services such as teletext broadcasting using broadcast waves and transmission of data to broadcasting stations via telephone lines are also being implemented. In addition, a service called intertext that is more interactive than text multiplex broadcasting is about to be started.
[0005]
FIG. 19 is a diagram showing a schematic configuration of an interactive service using a server.
[0006]
The first station A and the second station B perform data communication via the telephone line C. The first station A receives a TV broadcast wave by the antenna 8 and extracts information multiplexed on the TV broadcast wave.
[0007]
The first station A includes an information processing terminal device 1, an analog modem 2, and a video signal processing device 3. The second station B includes a modem 4, a server device 5 that is a kind of information processing device, an auxiliary storage device 6, and a network interface (network interface / F) 7.
[0008]
The server device 5 is a computer that performs appropriate processing in response to an instruction requested from the information processing terminal device 1. Further, it is connected to a wide area network, the so-called Internet, through a network I / F 7. The Internet is a global network with countless computers connected. The server device 5 can also extract information held by other computers via the Internet.
[0009]
Next, data communication between the first station A and the second station B will be described.
[0010]
The first station A is a general form in which communication is performed using a personal computer in a general household, for example. The second station B conceptually shows the most basic configuration of a so-called Internet provider.
[0011]
Generally, the first station A exchanges a contract with the second station B in order to perform data communication with the second station B, and an account for accessing the server device 5, and the second station B You will get a phone number.
[0012]
A case where the contracted first station A performs communication will be described with reference to FIG. First, a line connection request is issued to the second station B to establish a connection via the telephone line C (191 in FIG. 20). This is a connection between the modem 2 and the modem 4.
[0013]
Next, a software connection is established between the information processing terminal device 1 and the server device 5. For software connection, ΡΡΡ (192 in FIG. 20) is used as a data link layer, and so-called TC Ρ / ΙΡ (Transmission Control Protocol / Internet Protocol: 193, 194 in FIG. 20) is used as a network layer and a transport layer. . As for cocoon, “The Point-to-Point Protocol (PPP)”, W.H. Simpson et al., Network Working Group, RFC1661.
[0014]
If a connection is established between the first station A and the second station B in this way, the information provided on the WWW system, for example, can be obtained in the first station A. The protocol for realizing the WWW system is http (195 in FIG. 20), which corresponds to the session layer, presentation layer, and application layer of the OSI reference model. As for http, “Hypertext Transfer Protocol—HTTP / 1.0”, T.M. Berners-Lee et al., HTTP Working Group, INTERNET-DRAFT, September 4, 1995, and the like.
[0015]
On the other hand, an information service using terrestrial broadcasting will be described. In an information service using terrestrial TV broadcasting, data is multiplexed using a part of a vertical synchronizing signal of a video signal.
[0016]
FIG. 21 is a diagram showing an enlarged waveform of the vertical synchronizing signal portion of the video signal. In this figure, the line number and its waveform are shown in detail. Line numbers “10” to “20” are vertical blanking periods and are not displayed on the TV screen. Among these, the line numbers “17” to “20” are used during operation on the broadcasting station side. The line numbers “14” to “16” are assigned for data broadcasting, and character and graphic data are transmitted. This is called teletext broadcasting. In addition, a service is also planned that uses the line numbers “10” to “13” and has higher interactivity than the current text multiplex broadcasting.
[0017]
Next, a user operation on the information processing terminal device 1 will be described.
FIG. 22 is a diagram illustrating a specific example of a conventional configuration of the information processing terminal device 1 and the video signal processing device 3. As shown in this figure, the information processing terminal device 1 has an information processing device 11, a display device 12, an auxiliary storage device 13, and an auxiliary input device 14, and the display device 12, the auxiliary storage device 13 and the auxiliary input device 14 are Each is connected to the information processing apparatus 11. The modem 2 is also connected to the information processing apparatus 11.
[0018]
The information processing apparatus 11 is basically controlled by an OS (operating system) stored in the auxiliary storage device 13. The user executes a browser of the WWW system by using the auxiliary input device 14, for example, Mosaic developed at the University of Illinois, USA. The information processing apparatus 11 reads the browser application stored in the auxiliary storage device 13 and displays it on the display device 12. Next, in order to obtain desired information on the Internet, an auxiliary input device is used to input a URL (Uniform Resource Locator) that is an address for identifying information on the Internet. The information processing apparatus 11 requests the server apparatus 5 to read the specified URL information. Then, the server device 5 searches for information on the designated URL from the network and returns it to the information processing device 11.
[0019]
Information returned from the server device 5 is a hyperlink structure, that is, HTML (for example, “HyperText Markup Language--HTML / 2.0”, T. Berners-Lee et al., HTML Working Group, INTERNET-DRAFT, August 8, 1995. Information). The information in the HTML format is shaped by Mosaic operating on the information terminal device 11 and displayed on the display device 12 as graphical data.
[0020]
On the other hand, the video signal processing device 3 includes a synchronization separation device 31, a waveform equalization device 32, and a data capture error correction device 33.
[0021]
The video signal input from the antenna 8 is supplied to the sync separator 31 and the waveform equalizer 32, respectively. The synchronization separation device 31 performs synchronization separation from the video signal and generates a timing signal or the like for determining the line number. The waveform equalizer 32 removes the ghost from the video signal, and then extracts the data superimposed on the vertical sync signal unit shown in FIG. 21 at a timing according to the timing signal generated by the sync separator 31. . The data fetch error correcting device 33 gives the data extracted by the waveform equalizer 32 to the information processing device 11 after performing error correction. When the user has selected the text multiplex broadcast, the information processing apparatus 11 generates an image corresponding to the data given from the data capture error correction apparatus 33 and displays it on the display apparatus 12 as shown in FIG.
[0022]
With such a configuration, the user can obtain enormous information via the Internet and text multiplex broadcasting.
[0023]
By the way, it is convenient if the information obtained in this way can be stored not only on the display device 12 but also in a storage medium such as a memory card.
[0024]
When information is stored in a storage medium, there is no problem if the storage medium has a sufficient remaining capacity. However, if the remaining capacity in the storage medium is smaller than the amount of information to be stored, the information already stored is stored. If the information is not deleted, new information cannot be stored.
[0025]
In such a case, if information that has already been stored is deleted randomly, information that is difficult to obtain again will be deleted.
[0026]
Therefore, if the information designated by the user is deleted, the user must display the contents of each information on the display device 12 for confirmation, search for information that can be deleted, and then instruct the deletion. Therefore, it becomes very inconvenient.
[0027]
In addition, when information is received using a timer reservation at night or the like and is to be stored in a storage medium, the user cannot designate deletion of information already stored in the storage medium. If the remaining capacity is insufficient, it becomes impossible to save information.
[0028]
If priority is given to storing new information in such a case, there is no choice but to delete information that has already been stored at random. In this case, the above-described problems occur.
[0029]
[Problems to be solved by the invention]
As described above, conventionally, when information is stored in a storage medium, information management is not performed, and deletion of information stored in the storage medium must be performed in accordance with a user instruction or at random. In the former case, there is a problem that the burden on the user increases and convenience decreases, and in the latter case, there is a problem that important information that is difficult to obtain again may be deleted against the user's will.
[0030]
The present invention has been made in view of such circumstances, and the object of the present invention is to firstly provide an information service that allows a user to easily instruct deletion of information stored in a storage medium. To provide a receiving apparatus and an information service receiving method.
[0031]
Secondly, when it becomes necessary to newly store information whose amount exceeds the remaining capacity of the storage medium, the already stored information is automatically deleted to secure a new information storage area. Another object of the present invention is to provide an information service receiving apparatus that can be used and that does not delete information that is difficult to obtain again.
[0032]
[Means for Solving the Problems]
In order to achieve the first object, the invention according to claim 1 is characterized in that main information acquisition means for receiving main information given from a predetermined information provider, and the main information received by the main information acquisition means. Main information writing means for writing information to predetermined main storage means, and additional information generating means for generating predetermined additional information that is used as a material for determining the difficulty of obtaining the main information based on the acquisition status of the main information And additional information writing means for writing the additional information in association with the main information in the main storage means, and display means for displaying the additional information stored in the main storage means.
[0033]
In order to achieve the first object, the invention according to claim 7 receives main information given from a predetermined information provider, writes the main information to a predetermined main storage means, and stores the main information. Based on the acquisition status, predetermined additional information that is used as a material for determining the difficulty of obtaining the main information is generated, the additional information is written in the main storage unit in association with the main information, and stored in the main storage unit. The additional information is displayed.
[0034]
By taking these means, in the main memory means, predetermined additional information is stored in association with each main information and used as a material for determining the difficulty level of acquisition, and this additional information is displayed. Therefore, the user can easily determine the degree of difficulty in obtaining the main information based on the additional information.
[0035]
In order to achieve the second object, the invention according to claim 2 is characterized in that main information acquisition means for receiving main information given from a predetermined information provider, and the main information acquisition means receives the main information. Main information writing means for writing main information to a predetermined main storage means, and what information the main information is as a material for determining the difficulty of obtaining the main information based on the acquisition status of the main information The additional information generating means for generating predetermined additional information as a judgment material, additional information writing means for writing the additional information in association with the main information in the main storage means, and the main information writing means When there is no remaining capacity for writing main information in the main storage means, the sum of the information amount among the main information already stored in the main storage means is the information amount of the main information and the main storage means Difference from remaining capacity A search unit for searching for a combination of main information, a determination unit for determining, based on the additional information, a combination of the main information searched by the search unit that is easily re-obtainable, and the determination unit Only the main information included in the combination of the main information determined by the information is deleted from the main storage means, and the additional information associated with the main information is left in the main storage means, and the corresponding main information is Display means for displaying additional information deleted from the main storage means.
[0036]
By taking such means, the main memory means associates with each main information, and becomes a material for determining the difficulty level of acquisition and a predetermined material for determining what kind of information the main information is. Is stored. When main information having a larger amount of information than the remaining capacity of the main memory means must be written to the main memory means, the main information is stored in the main memory means in order to secure the capacity necessary for writing the main information. The main information that is easily reacquired is determined based on the additional information and automatically deleted from the main storage means. At this time, the additional information is left in the main memory and displayed. Therefore, the user can easily determine what main information has been deleted based on the displayed additional information.
[0037]
In order to achieve the second object, the invention according to claim 4 is characterized in that main information acquisition means for receiving main information given from another device and the main information in a detachable storage medium attached thereto. Main information writing means for writing the main information received by the acquiring means, and additional information generation for generating predetermined additional information that is used as a material for determining the difficulty of obtaining the main information based on the acquisition status of the main information Means, additional information writing means for writing the additional information in association with the main information in the main storage means, auxiliary storage means different from the storage medium, and when the storage medium is not mounted, Alternatively, when the storage medium has no remaining capacity for writing the main information and the auxiliary storage means has the remaining capacity for writing the main information, the main information and the main information Additional information Temporary storage processing means for storing the additional information generated by the generating means in the auxiliary storage means, and the storage having a remaining capacity for writing the main information in a state where the main information is stored in the auxiliary storage means Temporary storage information writing control means for writing main information stored in the auxiliary storage means and additional information corresponding to the main information to the attached storage medium in response to attachment of the medium, and the main information When there is no remaining capacity for writing in either the main storage means or the auxiliary storage means, the sum of the information amount among the main information already stored in the main storage means is the information of the main information Search means for searching for a combination of main information that is greater than or equal to the difference between the amount and the remaining capacity of the main storage means, and among the combinations of main information searched by this search means, those that are easy to obtain again Determining means for determining on the basis of the additional information, and a data deletion means for deleting the information contained in the combination of the main information that has been determined by the determining means from said main storage means.
[0038]
By taking such means, the main storage means stores predetermined additional information that is used for determining the degree of difficulty of acquisition in association with each main information. When main information having a larger amount of information than the remaining capacity of the main memory means must be written to the main memory means, the main information is stored in the main memory means in order to secure the capacity necessary for writing the main information. The main information that is easily reacquired is determined based on the additional information and automatically deleted from the main storage means. However, when the auxiliary storage means has a remaining capacity larger than the information amount of the main information, the main information is temporarily stored in the auxiliary storage means, and deletion of the main information from the main storage means is avoided.
[0039]
In the invention according to claim 5, the information deleting means in the invention according to claim 4 is such that only the main information is deleted and the additional information associated with the main information is left in the main memory means. .
[0040]
By taking such means, even if the main information is automatically deleted, the additional information corresponding to the main information remains in the main storage means.
[0041]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, several embodiments of the present invention will be described with reference to the drawings.
[0042]
(First embodiment)
FIG. 1 is a functional block diagram showing the main configuration of the information service receiving apparatus according to the first embodiment of the present invention. The same parts as those in FIG. 22 are denoted by the same reference numerals.
[0043]
In the figure, reference numeral 100 denotes an information service receiving apparatus according to this embodiment. The information service receiving device 100 includes a video signal processing device 3 and an information processing terminal device 101.
[0044]
The information processing terminal device 101 communicates with a station where the server is installed via a telephone line C connected to a station where the server is installed (not shown: corresponding to the second station B in FIG. 19). A modem 2 for performing the above is connected. The video signal processing device 3 is connected to an antenna 8 for receiving TV terrestrial waves.
[0045]
The video signal processing device 3 includes a synchronization separation device 31, a waveform equalization device 32, and a data fetch error correction device 33.
[0046]
The synchronization separation device 31 performs synchronization separation from the video signal input from the antenna 8 and generates a timing signal or the like for determining a line number. Then, the sync separator 31 gives the generated timing signal or the like to the waveform equalizer 32.
[0047]
The waveform equalizer 32 removes ghost from the video signal input from the antenna 8, and then extracts the data superimposed on the vertical synchronization signal section shown in FIG. Perform at the timing according to. Then, the waveform equalizer 32 gives the extracted data to the data fetch error correction device 33.
The data fetch error correction device 33 performs error correction on the data given from the waveform equalizer 32. Then, the data fetch error correction device 33 gives the data after error correction to the information processing terminal device 101.
[0048]
The information processing terminal device 101 includes a display device 12, an auxiliary storage device 13, an auxiliary input device 14, a memory card interface 15, and an information processing device 16, and includes the display device 12, the auxiliary storage device 13, the auxiliary input device 14, and The memory card interface 15 is connected to the information processing device 16. The modem 2 is also connected to the information processing device 16.
[0049]
The display device 12 has, for example, a CRT or LCD, and displays various images to be presented to the user under the control of the information processing device 16.
[0050]
The auxiliary storage device 13 is for storing information such as an OS for basic control of the information processing device 16.
[0051]
The auxiliary input device 14 is, for example, a keyboard or a touch panel, and is used by the user to input various instructions to the information processing device 16.
[0052]
The memory card interface 15 writes information to the memory card 9 and reads information from the memory card 9 when the removable memory card 9 is attached to the information service receiving apparatus 100. This is performed under 16 controls. The memory card 9 uses, for example, a physical device such as FlashROM or NandEEPROM.
[0053]
The information processing apparatus 16 has, for example, a microcomputer as a main control circuit, and performs processing such as accessing various information providing services and presenting provided information to the user. The information processing device 16 includes a data writing unit 16a, an additional information generating unit 16b, an additional information writing unit 16c, and an additional information display unit 16d, in addition to basic processing units for receiving provision of various information providing services. have.
[0054]
Here, the data writing means 16a performs processing for writing the data obtained via the modem 2 or the video signal processing device 3 to the memory card 9. The additional information generation unit 16b generates additional information that is used as a material for determining the degree of difficulty in obtaining the data based on the data acquisition status. The additional information writing means 16c performs processing for writing the additional information generated by the additional information generating means 16b in association with the data into the memory card 9. The additional information display means 16d displays a list image of additional information stored in the memory card 9 on the display device 12 in response to a predetermined additional information display instruction from the auxiliary input device 14. Processing is performed.
[0055]
Next, the operation of the information service receiving apparatus 100 configured as described above will be described in accordance with the processing procedure of the information processing apparatus 16 shown in FIG.
[0056]
First, in the standby state, the information processing device 16 waits for the necessity to receive data or for an instruction to display additional information (step ST1 and step ST2).
[0057]
In this state, when it is necessary to perform data reception, for example, when an instruction to perform data reception is given by a predetermined instruction operation on the auxiliary input device 14, the information processing device 16 performs data reception processing (step ST3). . This data reception process is a well-known process in which the modem 2 is controlled to receive data via the Internet, or the video signal processing device 3 is controlled to receive data via text multiplex broadcasting.
[0058]
Subsequently, the information processing apparatus 16 creates additional information related to the data received in step ST3 by the additional information generating means 16b (step ST4). Further, the information processing device 16 writes the data received in step ST3 into the memory card 9 by the data writing means 16a, and associates the additional information generated in step ST4 with the data as shown in FIG. In this state, the additional information writing means 16c writes to the memory card 9 (step ST5). Thereafter, the information processing apparatus 16 ends a series of processes and returns to a standby state.
[0059]
Here, as shown in FIG. 3B, the additional information includes information on a title, time required for reception, amount of money required for reception, acquisition route, size, and data type. The information on the acquisition route indicates whether the corresponding data is via the Internet or text multiplex broadcasting. The data type information indicates whether the corresponding data is an image, text, or music. The data type information includes a URL indicating that the corresponding data uses the WWW system, an e-mail if the corresponding data is an e-mail, and a channel and time if the corresponding data is a character multiplex broadcast. More detailed information is included.
[0060]
FIG. 4 shows an example of the contents of the additional information as a list. In the example shown in this figure, for example, data with “Data A” as a title is 200-byte music information obtained via the Internet, and it takes 30 seconds and 30 yen to receive it. It is shown that.
[0061]
On the other hand, data with “Data C” as a title indicates 150-byte image information obtained by a digital still camera. The data corresponding to the additional information is not received, but such a form is also conceivable when the memory card 9 is a general-purpose one that can also be used for a digital still camera to improve convenience. .
[0062]
When the information processing device 16 is in a standby state and an additional information display instruction is given by a predetermined instruction operation on the auxiliary input device 14, the information processing device 16 reads the additional information written in the memory card 9. (Step ST6). Then, the information processing device 16 generates a predetermined form of additional information list image based on the read additional information (step ST7), and causes the display device 12 to display the additional information list image (step ST8). Thereafter, the information processing apparatus 16 ends a series of processes and returns to a standby state. The processes in steps ST6 to ST8 are performed by the additional information display unit 16d.
[0063]
FIG. 5 is a diagram showing a display example of the additional information list image when the additional information written in the memory card 9 has the contents shown in FIG.
[0064]
Thus, according to the present embodiment, when data is received, additional information including information on time required for reception, amount of money required for reception, acquisition route, size, and data type is generated and stored together with the data. Store in the card 9. In response to the additional information display instruction, an additional information list image indicating the contents of the additional information stored in the memory card 9 is generated and displayed on the display device 12.
[0065]
Therefore, the user can view information on the data stored in the memory card 9 by giving an additional information display instruction. This information includes information that can determine the degree of difficulty in obtaining the data, such as the time required for reception, the amount of money required for reception, the acquisition route, the size, and the data type. The importance of each data stored in the memory card 9 can be easily determined based on the list image. As a result, the user can easily determine the data that can be deleted from the memory card 9 when it is necessary to secure a capacity for writing new data, and the data can be deleted efficiently and easily. Can be done.
[0066]
(Second Embodiment)
FIG. 6 is a functional block diagram showing the main configuration of the information service receiving apparatus according to the second embodiment of the present invention. The same parts as those in FIGS. 1 and 22 are denoted by the same reference numerals.
[0067]
In the figure, reference numeral 200 denotes an information service receiving apparatus according to this embodiment. The information service receiving device 200 includes a video signal processing device 3 and an information processing terminal device 201.
[0068]
The information processing terminal device 201 communicates with a station where the server is installed via a telephone line C connected to a station where the server is installed (not shown: corresponding to the second station B in FIG. 19). A modem 2 for performing the above is connected. The video signal processing device 3 is connected to an antenna 8 for receiving TV terrestrial waves.
[0069]
That is, the information service receiving apparatus 200 of this embodiment is provided with an information processing terminal apparatus 201 instead of the information processing terminal apparatus 101 in the information service receiving apparatus 100 of the first embodiment.
[0070]
The information processing terminal device 201 includes a display device 12, an auxiliary storage device 13, an auxiliary input device 14, a memory card interface 15, and an information processing device 17, and includes the display device 12, the auxiliary storage device 13, the auxiliary input device 14, and The memory card interface 15 is connected to the information processing device 17. The modem 2 is also connected to the information processing device 17.
[0071]
That is, the information processing terminal device 201 in the present embodiment is provided with the information processing device 17 instead of the information processing device 16 in the information processing terminal device 101 of the first embodiment.
[0072]
The display device 12 has, for example, a CRT or LCD, and displays various images to be presented to the user under the control of the information processing device 17.
[0073]
The auxiliary storage device 13 is for storing information such as an OS for basic control of the information processing device 17.
[0074]
The auxiliary input device 14 is, for example, a keyboard or a touch panel, and is used by the user to input various instructions to the information processing device 17.
[0075]
The memory card interface 15 writes information into the memory card 9 and reads information from the memory card 9 when the removable memory card 9 is attached to the information service receiving device 200. This is performed under the control of 17. The memory card 9 uses, for example, a physical device such as FlashROM or NandEEPROM.
[0076]
The information processing apparatus 17 has, for example, a microcomputer as a main control circuit, and performs processing such as accessing various information providing services and presenting provided information to the user. The information processing apparatus 17 includes a data writing means 16a, an additional information generating means 16b, an additional information writing means 16c, and a deletion candidate searching means 17a in addition to basic processing means for receiving provision of various information providing services. , A deletion information determination unit 17b and a write control unit 17c. That is, the information processing apparatus 17 in the present embodiment is provided with a deletion candidate search means 17a, a deletion information determination means 17b, and a write control means 17c instead of the additional information display means 16d in the information processing apparatus 16 of the first embodiment. It has become.
[0077]
Here, when the size of the received data is larger than the remaining capacity of the memory card 9, the deletion candidate search means 17a calculates the sum of the sizes of the data already stored in the memory card 9 and the size of the received data and the memory card. A combination of data that is equal to or larger than the difference from the remaining capacity of 9 is searched for as a deletion candidate. The deletion information determination unit 17b determines, based on the additional information, a combination of data searched by the deletion candidate search unit 17a that can be easily obtained again. The write control means 17c deletes data included in the combination determined by the deletion information determination means 17b from the memory card 9 and then causes the data write means 16a to write the received data.
[0078]
Next, the operation of the information service receiving apparatus 200 configured as described above will be described in accordance with the processing procedure of the information processing apparatus 17 shown in FIG.
[0079]
First, in the standby state, the information processing apparatus 17 waits for the necessity to receive data (step ST11).
[0080]
In this state, for example, when it is necessary to perform data reception due to an instruction to perform data reception by a predetermined instruction operation on the auxiliary input device 14 or when a timer reserved time arrives, the information processing device 17 Performs data reception processing (step ST12). This data reception process is a well-known process in which the modem 2 is controlled to receive data via the Internet, or the video signal processing device 3 is controlled to receive data via text multiplex broadcasting. Further, the information processing apparatus 17 creates additional information similar to that in the first embodiment described above from the implementation status of the data reception processing by the additional information generating means 16b (step ST13).
[0081]
Next, the information processing device 17 determines whether or not the size of the data received in step ST12 is smaller than the remaining capacity of the memory card 9, so that a remaining capacity sufficient to store the current received data is obtained. It is determined whether or not the memory card 9 has (step ST14). If the size of the received data is smaller than the remaining capacity of the memory card 9, the current received data can be stored in the free area of the memory card 9, so the information processing device 17 receives the data received in step ST12. The data writing means 16a writes to the memory card 9, and the additional information generated in step ST13 is written to the memory card 9 by the additional information writing means 16c in a state associated with the data as shown in FIG. (Step ST15). Thereafter, the information processing apparatus 17 ends a series of processes and returns to a standby state.
[0082]
However, if the size of the received data is larger than the remaining capacity of the memory card 9, the current received data cannot be stored in the memory card 9 as it is. Therefore, the information processing device 17 performs data deletion processing (step ST16).
[0083]
Hereinafter, the data deletion process will be described in detail with reference to FIG.
[0084]
When the information processing apparatus 17 starts the data deletion processing, first, in order to secure the memory card 9 with a capacity necessary for storing the current received data, the size of data to be deleted from the memory card 9 (necessary deletion size) is set. Calculate (step ST21). This is performed by subtracting the remaining capacity of the memory card 9 from the size of the current received data. Specifically, if the current received data size is “350” and the remaining capacity of the memory card 9 is “50”, the necessary deletion size is “300” or more.
[0085]
Subsequently, the information processing device 17 refers to the additional information of the data already stored in the memory card 9 and searches for a combination of data (including a single data only) whose total size exceeds the necessary deletion size. (Step ST22) It is determined whether there is a corresponding combination (step ST23). The processes in steps ST21 to ST23 described above are performed by the deletion candidate search unit 17b.
[0086]
For example, if the additional information of the data already stored in the memory card 9 has the contents shown in FIG. 4 and the required deletion size is “300” or more, a combination of data in which the total size exceeds the required deletion size Can search for combinations as shown in the column 91 in FIG.
[0087]
If there is such a combination, it is determined as a deletion candidate. Then, the information processing device 17 searches for a combination of only data that can be obtained again from the deletion candidates searched in step ST22 (step ST24), and determines whether there is a corresponding combination. (Step ST25). In order to determine whether or not it can be obtained again, information on the acquisition route and information on the data type among the additional information are used. For example, when the acquisition route is a digital still camera, it is determined that data whose data type is electronic mail cannot be acquired again. Then, whether or not each of the combinations searched in step ST22 is a combination of only data that can be obtained again is shown in the column 92 in FIG.
[0088]
If a corresponding combination is found also in step ST24, that combination is set as a new deletion candidate (deletion candidates are narrowed down). Subsequently, the information processing apparatus 17 searches for only one combination with the smallest total amount of money required for reception from the deletion candidates searched in step ST24 (step ST26), and determines the time required for reception in that combination. It is determined whether or not the total is within a certain time (step ST27). The fixed time is set in consideration of an allowable time as a time required for reacquisition. This fixed time may be determined and fixedly set appropriately by the manufacturer, or may be arbitrarily determined and set by the user.
[0089]
If the total time required for reception in the combination searched in step ST26 exceeds a certain time, the information processing apparatus 17 determines that it is difficult to reacquire data of the combination, and deletes the combination as a deletion candidate. (Step ST28), and thereafter the processing after step ST26 is repeated. The processes in steps ST24 to ST28 described above are performed by the deletion information determination unit 17b.
[0090]
When a combination in which the total time required for reception is equal to or less than a predetermined time is searched in step ST26, the information processing apparatus 17 determines data included in the combination as deletion data, and stores the corresponding data and data from the memory card 9. The additional information corresponding to the data is deleted by the write control means 17c (step ST29).
[0091]
Specifically, in the case of each combination shown in FIG. 9, the total amount of money required for reception is shown in the column indicated by 93 in FIG. 9, and the total time required for reception is indicated in the column indicated by 94 in FIG. It will be shown. Accordingly, the sum total of the amounts required for reception is the combination where the total amount is “0”, that is, data with “Data D” added as the title. Therefore, the time required for reception is “60”. Is within a predetermined time, the data with “Data D” added as the title and the additional information corresponding thereto are deleted from the memory card 9.
[0092]
Thus, the memory card 9 has a remaining capacity equal to or larger than the size of the current received data. When the data deletion process is completed, the information processing apparatus 17 moves the process to step ST15, where the current received data and the additional information corresponding thereto are written in the memory card 9.
[0093]
When it is found in step ST23 or step ST25 that the corresponding combination is not found in either step ST22 or step ST24, the information processing device 17 can delete the data already stored in the memory card 9. It is determined that there is no data, the writing of the current received data to the memory card 9 is given up, and the series of processes is ended as it is.
[0094]
As described above, according to the present embodiment, when data is received, additional information including the time required for reception, the amount of money required for reception, the acquisition route, the size, and the data type is generated. The data is stored in the memory card 9 together with the data. If the size of the newly received data is larger than the remaining capacity of the memory card 9, data that can be easily obtained again is selected from the already stored data based on the additional information. After the additional information to be deleted is automatically deleted from the memory card 9, the data received this time is written into the memory card 9.
[0095]
Therefore, even if a memory card 9 with a small remaining capacity is inserted, newly received data can be stored in the memory card 9 reliably and without bothering the user. Even if the data deleted from the memory card 9 is not desired to be deleted by the user, the data can be easily obtained again.
[0096]
(Third embodiment)
FIG. 10 is a functional block diagram showing the main configuration of the information service receiving apparatus according to the third embodiment of the present invention. The same parts as those in FIGS. 1, 6 and 22 are denoted by the same reference numerals.
[0097]
In the figure, reference numeral 300 denotes an information service receiving apparatus according to this embodiment. The information service receiving device 300 includes a video signal processing device 3 and an information processing terminal device 301.
[0098]
The information processing terminal device 301 communicates with a station where the server is installed via a telephone line C connected to a station where the server is installed (not shown: corresponding to the second station B in FIG. 19). A modem 2 for performing the above is connected. The video signal processing device 3 is connected to an antenna 8 for receiving TV terrestrial waves.
[0099]
That is, the information service receiving device 300 of this embodiment is provided with an information processing terminal device 301 instead of the information processing terminal device 201 in the information service receiving device 200 of the second embodiment.
[0100]
The information processing terminal device 301 includes a display device 12, an auxiliary storage device 13, an auxiliary input device 14, a memory card interface 15, and an information processing device 18, and includes the display device 12, the auxiliary storage device 13, the auxiliary input device 14, and Each memory card interface 15 is connected to the information processing apparatus 18. The modem 2 is also connected to the information processing apparatus 18.
[0101]
That is, the information processing terminal device 301 in this embodiment is provided with the information processing device 18 instead of the information processing device 17 in the information processing terminal device 201 of the second embodiment.
[0102]
The display device 12 has, for example, a CRT or LCD, and displays various images to be presented to the user under the control of the information processing device 18.
[0103]
The auxiliary storage device 13 is for storing information such as an OS for basic control of the information processing device 18.
[0104]
The auxiliary input device 14 is, for example, a keyboard or a touch panel, and is used by the user to input various instructions to the information processing device 18.
[0105]
The memory card interface 15 writes information into the memory card 9 and reads information from the memory card 9 when the removable memory card 9 is attached to the information service receiving device 300. This is performed under 18 controls. The memory card 9 uses, for example, a physical device such as FlashROM or NandEEPROM.
[0106]
The information processing apparatus 18 has, for example, a microcomputer as a main control circuit, and performs processing such as accessing various information providing services and presenting provided information to the user. In addition to basic processing means for receiving various information providing services, the information processing apparatus 18 includes a data writing means 16a, additional information generating means 16b, additional information writing means 16c, and deletion candidate searching means 17a. , A deletion information determination unit 17b, a write control unit 18a, and an additional information deletion unit 18b. That is, the information processing apparatus 18 in the present embodiment is provided with a write control means 18a and an additional information deletion means 18b in place of the write control means 17c in the information processing apparatus 17 of the second embodiment. .
[0107]
Here, the writing control means 18a deletes the data included in the combination determined by the deletion information determining means 17b from the memory card 9, and then causes the data writing means 16a to write the received data. When deleting from the card 9, the additional information is left without being deleted. The additional information deleting means 18b notifies the user of the contents of the additional information corresponding to the deleted data when the timer reservation is canceled when the write control means 18a deletes the data during the timer reservation setting. At the same time, the additional information is deleted in accordance with an instruction from the user.
[0108]
Next, the operation of the information service receiving apparatus 300 configured as described above will be described in accordance with the processing procedure of the information processing apparatus 18 shown in FIG.
[0109]
First, in the standby state, the information processing device 18 waits for the necessity to receive data or for the timer reservation to be canceled (step ST11 and step ST31).
[0110]
In this state, for example, when it is instructed to perform data reception by a predetermined instruction operation on the auxiliary input device 14 or when it is necessary to perform data reception due to the arrival of a timer reserved time, the information processing device 18 Thereafter, the processing from step ST12 to step ST16 is performed in substantially the same manner as the information processing apparatus 17 in the second embodiment. However, in the data deletion process of step ST16, the information processing apparatus 18 determines the deletion data by performing the same process as the process by the information processing apparatus 17 in the second embodiment in steps ST21 to ST28, as shown in FIG. After that, only the data determined as the deletion data is deleted from the memory card 9, and the additional information corresponding to the data is left in the memory card 9 (step ST41). Note that the processing of step ST41 is performed by the write control means 18a.
[0111]
When the timer reservation is canceled when the information processing device 18 is in the standby state, the information processing device 18 performs additional information deletion processing by the additional information deletion means 18b (step ST32).
[0112]
Hereinafter, the additional information deletion process will be described in detail with reference to FIG.
[0113]
When the information processing device 18 starts the additional information deletion process, first, the information processing device 18 searches the memory card 9 for additional information whose corresponding data has been deleted from the memory card 9 (step ST51), and whether or not there is corresponding additional information. (Step ST52). If the additional information from which the corresponding data has been deleted from the memory card 9 is not stored in the memory card 9, the information processing apparatus 18 ends the additional information deletion process and returns to the standby state.
[0114]
On the other hand, if the additional information in which the corresponding data has been deleted from the memory card 9 is stored in the memory card 9 and the additional information can be retrieved, the information processing device 18 next searches the additional information retrieved. For example, a deletion notification image as shown in FIG. 14 is created (step ST53) and displayed on the display device 12 (step ST54).
[0115]
Then, after displaying the deletion notification image in step ST54, the information processing apparatus 18 determines whether or not a deletion instruction is given (step ST55), and is deleted by a predetermined instruction operation on the auxiliary input device 14. If the instruction is given, the additional information searched this time is deleted from the memory card 9 (step ST56).
[0116]
As described above, according to the present embodiment, similarly to the second embodiment, even if a memory card 9 with a small remaining capacity is mounted, the newly received data can be reliably received and the user's hand can be It can be stored in the memory card 9 without bothering. Even if the data deleted from the memory card 9 is not desired to be deleted by the user, the data can be easily obtained again.
[0117]
Furthermore, according to the present embodiment, the user can recognize that the data has been automatically deleted from the memory card 9 and what the deleted data is by viewing the deletion notification image displayed on the display device 12. . If the deleted data is necessary for the user, re-acquisition can be easily performed based on the content of the deletion notification image.
[0118]
(Fourth embodiment)
FIG. 15 is a functional block diagram showing a main configuration of an information service receiving apparatus according to the fourth embodiment of the present invention. The same parts as those in FIGS. 1, 6 and 22 are denoted by the same reference numerals.
[0119]
In the figure, what is indicated by 400 is the information service receiving apparatus according to the present embodiment. The information service receiving device 400 includes a video signal processing device 3 and an information processing terminal device 401.
[0120]
The information processing terminal device 401 communicates with a station where the server is installed via a telephone line C connected to a station where the server is installed (not shown: corresponding to the second station B in FIG. 19). A modem 2 for performing the above is connected. The video signal processing device 3 is connected to an antenna 8 for receiving TV terrestrial waves.
[0121]
That is, the information service receiving device 400 of this embodiment is provided with an information processing terminal device 401 instead of the information processing terminal device 201 in the information service receiving device 200 of the second embodiment.
[0122]
The information processing terminal device 401 includes a display device 12, an auxiliary storage device 13, an auxiliary input device 14, a memory card interface 15, and an information processing device 19, and includes the display device 12, the auxiliary storage device 13, the auxiliary input device 14, and Each memory card interface 15 is connected to the information processing device 19. The modem 2 is also connected to the information processing device 19.
[0123]
That is, the information processing terminal device 301 in the present embodiment is provided with the information processing device 19 instead of the information processing device 17 in the information processing terminal device 201 of the second embodiment.
[0124]
The display device 12 has, for example, a CRT or LCD, and displays various images to be presented to the user under the control of the information processing device 19.
[0125]
The auxiliary storage device 13 is for storing information such as an OS for basic control of the information processing device 19.
[0126]
The auxiliary input device 14 is, for example, a keyboard or a touch panel, and is used by the user to input various instructions to the information processing device 19.
[0127]
The memory card interface 15 writes information into the memory card 9 and reads information from the memory card 9 when the removable memory card 9 is attached to the information service receiving device 300. This is performed under 19 controls. The memory card 9 uses, for example, a physical device such as FlashROM or NandEEPROM.
[0128]
The information processing device 19 has, for example, a microcomputer as a main control circuit, and performs processing such as accessing various information providing services and presenting provided information to the user. The information processing apparatus 19 includes a data writing unit 16a, an additional information generating unit 16b, an additional information writing unit 16c, and a deletion candidate searching unit 17a in addition to basic processing units for receiving provision of various information providing services. , A deletion information determination unit 17b, a write control unit 17c, a temporary storage processing unit 19a, and a transfer processing unit 19b. That is, the information processing apparatus 19 in this embodiment is provided with a temporary storage processing means 19a and a transfer processing means 19b in addition to the processing means included in the information processing apparatus 17 of the second embodiment.
[0129]
Here, the temporary storage processing unit 19a temporarily stores the received data in the auxiliary storage device 13 when the size of the received data is larger than the remaining capacity of the memory card 9 or when the memory card 9 is not attached. Processing is performed. The transfer processing means 19 b performs processing for transferring data temporarily stored in the auxiliary storage device 13 to the memory card 9.
[0130]
Next, the operation of the information service receiving apparatus 400 configured as described above will be described in accordance with the processing procedure of the information processing apparatus 19 shown in FIG.
[0131]
First, in the standby state, the information processing device 19 waits for the necessity to receive data or for the timer reservation to be released (step ST11 and step ST61).
[0132]
In this state, if it is necessary to perform data reception, for example, when an instruction to perform data reception is given by a predetermined instruction operation on the auxiliary input device 14 or a timer reserved time arrives, the information processing device 19 Thereafter, the processing from step ST12 to step ST15 is performed in substantially the same manner as the information processing apparatus 17 in the second embodiment.
[0133]
On the other hand, when it is determined in step ST14 that the size of the received data is larger than the remaining capacity of the memory card 9 (including the case where the memory card 9 is not attached), the information processing device 19 assists the size of the received data. It is determined whether or not the remaining capacity of the storage device 13 is smaller than the remaining capacity of the storage device 13 (step ST62). If the size of the received data is larger than the remaining capacity of the auxiliary storage device 13, the data deletion process in step ST16 is performed in the second embodiment. The information processing apparatus 17 in FIG.
[0134]
On the other hand, if the size of the received data is smaller than the remaining capacity of the auxiliary storage device 13, the information processing device 19 writes the received data and additional information to the auxiliary storage device 13 by the temporary storage processing means 19a (step ST63). Thereafter, the series of processes is terminated and the process returns to the standby state.
[0135]
When the timer reservation is canceled when the information processing device 19 is in the standby state, the information processing device 19 determines whether or not the received information is written to the auxiliary storage device 13 (step ST64). If the reception information has been written to the auxiliary storage device 13, the transfer processing means 19b performs data transfer processing (step ST64).
[0136]
Further, when the received information is not written to the auxiliary storage device 13 or after the data transfer processing is completed, the information processing device 19 performs the additional information deletion processing in step ST32 with the information processing device 18 in the third embodiment. Do almost the same.
[0137]
By the way, the data transfer process in step ST64 is performed as follows. That is, as shown in FIG. 17, when the information processing device 19 starts the data transfer process, first, for example, a memory card replacement for urging the user to install the memory card 9 having a sufficient remaining capacity as shown in FIG. A request image is created (step ST71), the memory card exchange request image is displayed on the display device 12, and the memory card 9 having a remaining capacity larger than the size of the data stored in the auxiliary storage device 13 is displayed. Is awaited to be mounted (step ST72 to step ST74).
[0138]
When the memory card 9 having a remaining capacity larger than the size of the data stored in the auxiliary storage device 13 is loaded, the information processing device 19 adds the data stored in the auxiliary storage device 13 and its addition. The information is transferred to the memory card 9 (step ST75), and thereafter the data and its additional information are deleted from the auxiliary storage device 13 (step ST76).
[0139]
As described above, according to the present embodiment, similarly to the second embodiment, even if a memory card 9 with a small remaining capacity is mounted, the newly received data can be reliably received and the user's hand can be It can be stored in the memory card 9 without bothering. Even if the data deleted from the memory card 9 is not desired to be deleted by the user, the data can be easily obtained again.
[0140]
Furthermore, according to the present embodiment, even if a memory card 9 with a small remaining capacity is installed or no memory card 9 is installed, the auxiliary storage device 13 has a remaining capacity larger than the size of received data. Then, the received data and the additional information are temporarily stored in the auxiliary storage device 13, and when the memory card 9 having a sufficient remaining capacity is inserted, the received data and the additional information are transferred to the memory card 9. Are transferred from the auxiliary storage device 13. Therefore, the data already stored in the memory card 9 is not deleted as much as possible, and the user's trouble for re-acquiring the data can be saved.
[0141]
The present invention is not limited to the above embodiments. For example, the content of the additional information is not limited to that described in each embodiment. For example, it is not necessary to include information on the title, the time required for reception, the amount of money required for reception, the acquisition route, the size, and the data type. In addition, information not included in the above may be included. For example, information indicating permission / prohibition of erasure can be added, and the permission / prohibition of erasure can be set according to a user instruction.
[0142]
In each of the above embodiments, the memory card 9 is exemplified as the main storage unit. However, in the first to third embodiments, a non-removable storage medium such as a semiconductor memory or a hard disk device may be used. In the fourth embodiment, another portable storage medium such as a floppy disk or a magneto-optical disk may be used.
[0143]
In the first embodiment, the list image is displayed on the display device 12 in order to notify the user of the contents of the additional information. For example, when a printer is connected, the list image is printed by the printer. Alternatively, the means for notifying the content of the additional information may be arbitrary, such as performing voice synthesis and performing voice notification.
[0144]
In addition, various modifications can be made without departing from the scope of the present invention.
[0145]
【The invention's effect】
According to the first aspect of the present invention, the information service receiving apparatus enables the user to easily instruct deletion of the information stored in the main storage means.
[0146]
According to the seventh aspect of the present invention, there is provided an information service receiving method that allows a user to easily instruct deletion of information stored in the main storage means.
[0147]
According to the second aspect of the present invention, when it becomes necessary to newly store information whose information amount exceeds the remaining capacity of the main storage medium, the already stored information is automatically deleted. A storage area for new information can be secured, and the information service receiving apparatus does not delete information that is difficult to obtain again. Furthermore, the user can easily determine what kind of information the automatically deleted main information is.
According to the fourth aspect of the present invention, when it becomes necessary to newly store information having an information amount exceeding the remaining capacity of the storage medium, information already stored is automatically deleted and a new information is stored. The information service receiving apparatus can secure an information storage area and does not delete information that is difficult to obtain. Furthermore, the opportunity to delete information already stored in the storage medium can be reduced, and the effort for re-acquiring information can be reduced.
[0148]
In the invention according to claim 5, the information deleting means in the invention according to claim 4 deletes only the main information and leaves the additional information associated with the main information in the main memory means. Therefore, it becomes possible for the user to know the contents of the deleted information based on the additional information remaining in the main storage means, and the user's trouble in re-acquiring the information can be further reduced. It becomes.
[Brief description of the drawings]
FIG. 1 is a functional block diagram showing a main configuration of an information service receiving apparatus according to a first embodiment of the present invention.
FIG. 2 is a flowchart showing a processing procedure of the information processing apparatus 16 in FIG. 1;
FIG. 3 is a diagram schematically showing a data storage state and additional information configuration in the memory card 9 in FIG. 1;
FIG. 4 is a diagram showing a list of examples of contents of additional information.
FIG. 5 is a diagram showing a display example of an additional information list image.
FIG. 6 is a functional block diagram showing a main configuration of an information service receiving apparatus according to a second embodiment of the present invention.
7 is a flowchart showing a processing procedure of the information processing apparatus 17 in FIG. 6;
8 is a flowchart showing a processing procedure in data deletion processing of the information processing apparatus 17 in FIG. 6;
FIG. 9 is a diagram for explaining a specific example of deletion data determination processing by the information processing apparatus 17 in FIG. 6;
FIG. 10 is a functional block diagram showing a main configuration of an information service receiving apparatus according to a third embodiment of the present invention.
FIG. 11 is a flowchart showing a processing procedure of the information processing apparatus 18 in FIG. 10;
12 is a flowchart showing a processing procedure in data deletion processing of the information processing apparatus 18 in FIG. 10;
13 is a flowchart showing a processing procedure in additional information deletion processing of the information processing apparatus 18 in FIG. 10;
FIG. 14 is a diagram showing a display example of a deletion notification image.
FIG. 15 is a functional block diagram showing a main configuration of an information service receiving apparatus according to a fourth embodiment of the present invention.
16 is a flowchart showing a processing procedure of the information processing apparatus 19 in FIG. 15;
FIG. 17 is a flowchart showing a processing procedure in data transfer processing of the information processing apparatus 19 in FIG. 15;
FIG. 18 is a diagram showing a display example of a memory card replacement request image.
FIG. 19 is a diagram showing a schematic configuration of an interactive service using a server.
20 is a diagram showing an OSI reference model of a protocol in the system shown in FIG.
FIG. 21 is a diagram illustrating a waveform obtained by enlarging a vertical synchronizing signal portion of a video signal.
22 is a diagram showing a specific example of a conventional configuration of the information processing terminal device 1 in FIG.
FIG. 23 is a diagram showing a display example of information received through text multiplex broadcasting.
[Explanation of symbols]
100, 200, 300, 400 ... Information service receiving apparatus
3 ... Video signal processing device
9 ... Memory card
101, 201, 301, 401 ... Information processing terminal device
12. Display device
13. Auxiliary storage device
14 ... Auxiliary input device
15 ... Memory card interface
16, 17, 18, 19 ... Information processing device
16a ... Data writing means
16b ... Additional information generating means
16c ... Additional information writing means
16d ... Additional information display means
17a ... Delete candidate search means
17b ... Deletion information determination means
17c: Write control means
18a ... Write control means
18b ... Additional information deleting means
19a ... Temporary storage processing means
19b: Transfer processing means

Claims (7)

Main information acquisition means for receiving main information given from a predetermined information provider;
Main information writing means for writing the main information received by the main information acquisition means into a predetermined main storage means;
Additional information generating means for generating predetermined additional information that is a material for determining the difficulty of obtaining the main information based on the acquisition status of the main information;
Additional information writing means for writing the additional information to the main storage means in association with the main information;
An information service receiving apparatus comprising: display means for displaying the additional information stored in the main storage means. Main information acquisition means for receiving main information given from a predetermined information provider;
Main information writing means for writing the main information received by the main information acquisition means into a predetermined main storage means;
Additional information generating means for generating predetermined additional information that is used as a material for determining the degree of difficulty in obtaining the main information based on the acquisition status of the main information and as a material for determining what information the main information is;
Additional information writing means for writing the additional information to the main storage means in association with the main information;
When there is no remaining capacity in the main storage means for the main information writing means to write the main information, the sum of the information amount among the main information already stored in the main storage means Search means for searching for a combination of main information that is equal to or greater than the difference between the amount of information and the remaining capacity of the main storage means;
A determination means for determining, based on the additional information, a combination of main information searched by the search means that is easily reacquired;
Only the main information included in the combination of the main information determined by the determining means is deleted from the main storage means, and additional information associated with the main information is left in the main storage means, an information deleting means,
An information service receiving apparatus, comprising: display means for displaying additional information whose corresponding main information has been deleted from the main storage means. The information service receiving apparatus according to claim 1, wherein the main storage unit is a removable storage medium. Main information acquisition means for receiving main information given from another device;
Main information writing means for writing the main information received by the main information acquiring means to the attached removable storage medium;
Additional information generating means for generating predetermined additional information that is a material for determining the difficulty of obtaining the main information based on the acquisition status of the main information;
Additional information writing means for writing the additional information to the main storage means in association with the main information;
Auxiliary storage means different from the storage medium;
When the storage medium is not mounted, or when there is no remaining capacity for writing the main information in the storage medium and there is a remaining capacity for writing the main information in the auxiliary storage means, Temporary storage processing means for storing the main information and additional information generated by the additional information generating means for the main information in the auxiliary storage means;
The main information stored in the auxiliary storage unit and the main information stored in the auxiliary storage unit in response to the mounting of the storage medium having a remaining capacity for writing the main information in a state where the main information is stored in the auxiliary storage unit. Temporary storage information writing control means for writing additional information corresponding to main information to the attached storage medium;
When there is no remaining capacity for writing the main information in either the main storage means or the auxiliary storage means, the sum of the information amount among the main information already stored in the main storage means is the main information. Search means for searching for a combination of main information that is equal to or greater than the difference between the amount of information and the remaining capacity of the main storage means;
A determination means for determining, based on the additional information, a combination of main information searched by the search means that is easily reacquired;
An information service receiving apparatus comprising: an information deleting unit that deletes information included in the combination of main information determined by the determining unit from the main storage unit. 5. The information service receiving apparatus according to claim 4, wherein the information deleting means deletes only the main information and leaves the additional information associated with the main information in the main storage means. The additional information is at least one of the time required for the main information acquisition unit to acquire the main information, the fee required for the main information acquisition unit to acquire the main information, and the type of the information provider. The information service receiving apparatus according to claim 1, wherein the information service receiving apparatus comprises: In response to the main information given by a given information provider,
Writing the main information into a predetermined main storage means;
Based on the acquisition status of the main information, generate predetermined additional information that is used as a material for determining the difficulty of obtaining the main information,
Writing the additional information in the main storage means in association with the main information;
An information service receiving method, wherein the additional information stored in the main storage means is displayed.

Images