JP4463607B2 - Recording / playback device - Google Patents

Description

  The present invention relates to a recording / reproducing apparatus for television broadcasting, for example, and more particularly to a recording / reproducing apparatus capable of automatically recording a television program.

  2. Description of the Related Art Conventionally, a recording / reproducing apparatus equipped with an electronic program guide reception function called EPG (Electronic Program Guide) can make a program reservation while viewing a program guide on a display. Furthermore, in order to reduce the burden on the user associated with the reservation operation, the program set in the EPG is automatically selected to perform scheduled recording by using a keyword set by the user, etc. A recording / reproducing apparatus is also proposed (see, for example, Patent Document 1).

JP 2000-175141 A (page 3-6, FIG. 1)

  In the conventional recording / reproducing apparatus, when automatically recording a television program, a program to be recorded is selected based on a keyword or the like previously input or designated by a user, and the program is recorded with a specified recording image quality. The keyword entered or specified by the user is important information for knowing the user's preference, but the user is always interested in all the keywords entered or specified. The degree of interest of the user with respect to each keyword is often not limited. However, since the conventional recording / reproducing apparatus automatically records the program based on any keyword with the same recording quality, the user's keyword and the degree of interest in the program can be automatically reflected in the recording image quality. There wasn't.

  An object of the present invention is to provide a recording / reproducing apparatus capable of automatically performing a setting reflecting the preference and interest of a user when reserving keyword recording.

  The recording / reproducing apparatus of the present invention includes program information extracting means for extracting program information relating to a broadcast program from a broadcast signal, broadcast signal recording means for recording the broadcast signal in association with program information for each broadcast program, and the broadcast signal recording Reproduction means for reproducing the broadcast signal recorded in the means, reproduction time measuring means for measuring the reproduction time by the reproduction means, and reproduction time storage for storing the reproduction time measured by the reproduction time measuring means for each broadcast program And a keyword setting means for setting a keyword, and a control means for controlling the operation of the entire apparatus. When reserving keyword recording for recording a broadcast program including the keyword in program information, the control means The total recording time of broadcast programs including keywords in the program information is calculated for each keyword to obtain the total recording time for each keyword. The total reproduction time for each keyword is obtained by adding the reproduction times of broadcast programs including the keyword, the reproduction frequency for each keyword is obtained from the total recording time and the total reproduction time, and the keyword recording is performed based on the reproduction frequency. The contents of the reservation setting are determined.

  According to the recording / reproducing apparatus of the present invention, it is possible to make a reservation setting that reflects a user's preference and interest when reserving a keyword recording for selecting and recording a broadcast program to be recorded based on the set keyword. An effect is obtained.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration of Embodiment 1 of a recording / reproducing apparatus according to the present invention. As shown in the figure, the recording / reproducing apparatus 1 includes an antenna input terminal 2, a tuner 3, a program data extraction circuit 4, a program data recording unit 5, an encoder 6 for converting a television broadcast signal into a stream, and a compressed television broadcast. A program stream recording unit 7 for recording a signal, a decoder 8 for converting a stream into a television broadcast signal, a switch 9 for switching a television broadcast signal, a television signal output terminal 10, a user data recording unit 11, a controller 12 for controlling a recording / reproducing function, It comprises an operation input unit 13 that receives user operations, a timer 14, and a data output terminal 15.

  In FIG. 1, the program data recording unit 5, the program stream recording unit 7, and the user data recording unit 11 are shown as separate units, but may be set in different recording areas in one hard disk device, for example. it can. The operation input unit 13 can be an operation input means such as an operation panel or a remote controller (remote operation device) provided in the recording / reproducing apparatus body.

  A broadcast wave signal received by the antenna and input from the antenna input terminal 2 is input to the tuner 3. A TV broadcast signal of a specific channel selected by the tuner 3 is input to the program data extraction circuit 4, the encoder 6, and the switch 9. The program data extraction circuit 4 extracts program data superimposed on the input television broadcast signal, converts the extracted program data into a list of program data that can be extracted by designating the broadcast date and time, and the program. The data is recorded in the data recording unit 5, and when the recording is completed, a program data acquisition completion notification is sent to the controller 12. The list of program data can be displayed on a predetermined display means (for example, a monitor connected to the recording / reproducing apparatus 1) in a format such as a weekly television program guide, for example.

  The encoder 6 compresses the television broadcast signal input from the tuner 3 without redundancy, converts it into a program stream, and outputs it. The converted program stream is recorded by the program stream recording unit 7.

  The decoder 8 receives the program stream read from the program stream recording unit 7 by the controller 12. The decoder 8 decodes the input program stream and converts it into a television broadcast signal. The converted television broadcast signal is input to the switch 9. The switch 9 selects a television broadcast signal output from the tuner 3 and a television broadcast signal output from the decoder 8 according to an instruction from the controller 12, and outputs the selected television broadcast signal. The TV broadcast signal output from the switch 9 is output to the outside through the TV signal output terminal 10.

  The operation input unit 13 is operated by a user using an operation panel or a remote controller, and performs keyword registration operation, reservation operation, channel tuning operation, recording operation, stop operation, pause operation playback operation, reservation list request operation, program Operation information such as a stream list request operation and a registered keyword list request operation is generated, and the generated operation information is input to the controller 12. The controller 12 controls each function as follows based on the operation information input from the operation input unit 13.

  When the operation information of the keyword registration operation is input from the operation input unit 13, the controller 12 additionally records the input keyword in the keyword list in the user data recording unit 11. FIG. 2 shows a recording example of the keyword list in the user data recording unit 11. As shown in the figure, each input keyword is assigned a keyword number and is managed as a keyword list together with a keyword reproduction time, a keyword recording time, and a keyword reproduction frequency, which will be described later. As will be described later, program data including the input keyword is searched from the program data list of the program data recording unit 5, and the corresponding program is automatically registered in the automatic recording reservation list in the user data recording unit 11. Register the start time.

  However, if this automatic recording reservation overlaps with the contents of the recording reservation list registered by the user in the same user data recording unit 11, the registration is not performed here. Here, the keyword registration is performed by the user inputting the keyword. However, for example, a desired keyword may be selected and registered from a plurality of previously registered keywords.

  When the operation information of the reservation operation is input from the operation input unit 13, the controller 12 adds the program of the designated date / time and channel to the recording reservation list in the user data recording unit 11 and registers the start time in the timer 14. To do. If the newly added reserved program exists in the automatic recording reservation list by the automatic recording reservation described above and is duplicated, the overlapping reserved program is deleted from the automatic recording reservation list, and the corresponding start time registration in the timer 14 is also deleted. To do. Note that the user data recording unit 11 includes the keyword list input as described above (see FIG. 2), the recording reservation list set by the reservation operation, and the automatic recording reservation automatically set based on the specified keyword. A list and a playback time list (see FIG. 3) for each program stream, which will be described later, are recorded.

  When the operation information of the channel selection operation is input from the operation input unit 13, the controller 12 sets the tuner 3 so as to tune to the designated channel. Further, the switch 9 is set so as to select the television broadcast signal from the tuner 3 so that the television broadcast signal from the tuner 3 is output to the television signal output terminal 10.

  When the operation information of the recording operation is input from the operation input unit 13, the controller 12 instructs the encoder 6 to set the designated recording rate and start the encoding operation, and the program stream output from the encoder 6 is the program stream. Record in the recording unit 7. At this time, the program information of the program to be recorded is extracted from the program data list of the program data recording unit 5 and recorded together with the program stream as additional information of the program stream. FIG. 4 shows an example of recording of this program information list. As shown in the figure, program information (contents of each item) is managed as a program information list together with the stream number of the corresponding program.

  When the operation information of the stop operation is input from the operation input unit 13 during recording, the controller 12 sets the encoder 6 to end encoding, and the recording of the program stream output from the encoder 6 to the program stream recording unit 7 is also ended. Let In addition, when the operation information of the pause operation is input from the operation input unit 13 during the recording, the controller 12 sets the encoding pause to the encoder 6 and sends the program stream output from the encoder 6 to the program stream recording unit 7. Recording is also paused.

  When the operation information of the pause operation is input again from the operation input unit 13 during the recording pause, the controller 12 sets the encoder 6 to resume encoding, and the program stream output from the encoder 6 is sent to the program stream recording unit 7. Will resume recording. Further, when the operation information of the stop operation is input from the operation input unit 13 during the recording pause, the controller 12 sets the end of encoding in the encoder 6 and sends the program stream output from the encoder 6 to the program stream recording unit 7. The recording is also terminated.

  When the operation information of the reproduction operation is input from the operation input unit 13, the controller 12 sets the program stream recording unit 7 to output the designated program stream to the decoder 8, and causes the decoder 8 to reproduce the program stream. set. Further, the switch 9 is set so as to select the television broadcast signal from the decoder 8, and the reproduced television broadcast signal from the decoder 8 is output to the television signal output terminal 10. Then, the timer 14 starts measuring the reproduction time of the designated program stream.

  When the operation information of the stop operation is input from the operation input unit 13 during reproduction, the controller 12 sets the end of decoding in the decoder 8 and also ends the output of the program stream from the program stream recording unit 7. Further, the switch 9 is set so as to select the television broadcast signal from the tuner 3 so that the television broadcast signal from the tuner 3 is output to the television signal output terminal 10. Then, the reproduction time measurement of the program stream measured using the timer 14 is ended, and the reproduction time is recorded in the user data recording unit 11.

  If the playback time of the corresponding program stream has already been recorded, the recorded playback time is added to the currently measured playback time, and the result is recorded. FIG. 3 shows a recording example of a reproduction time list for each program stream recorded in the user data recording unit 11. As shown in the figure, the total playback time of each program is managed as a playback time list together with the corresponding program stream number.

  Further, when the operation information of the pause operation is input from the operation input unit 13 during the reproduction, the controller 12 sets the decoding pause in the decoder 8 and pauses the output of the program stream from the program stream recording unit 7. Let Also, the reproduction time measurement of the program stream that has been measured using the timer 14 is temporarily stopped.

  When the operation information of the pause operation is input again from the operation input unit 13 during the playback pause, the controller 12 sets the decoder 8 to resume decoding and restarts the output of the program stream from the program stream recording unit 7. Also, the reproduction time measurement of the program stream whose measurement has been temporarily stopped by the timer 14 is resumed.

  When the operation information of the stop operation is input from the operation input unit 13 during the reproduction pause, the controller 12 sets the decoding end to the decoder 8 and ends the output of the program stream from the program stream recording unit 7. Further, the switch is set so as to select the television broadcast signal from the tuner 3, and the television broadcast signal from the tuner 3 is output to the television signal output terminal 10. In addition, the reproduction time measurement of the program stream whose measurement has been temporarily stopped by the timer 14 is ended, and the reproduction time is recorded in the user data recording unit 11. If the playback time of the corresponding program stream has already been recorded, the recorded playback time is added to the currently measured playback time, and the result is recorded.

  When the operation information of the program data request operation is input from the operation input unit 13, the controller 12 extracts the corresponding program data from the program data list recorded in the program data recording unit 5 and outputs it to the data output terminal 15. .

  When the operation information of the reservation list request operation is input from the operation input unit 13, the controller 12 extracts the reservation list (the recording reservation list and the automatic recording reservation list) from the user data recording unit 11 and outputs it to the data output terminal 15.

  When the operation information of the program stream list request operation is input from the operation input unit 13, the controller 12 extracts each program information of the recorded program stream from the program stream recording unit 7, and makes a list as shown in FIG. Output to the data output terminal 15.

  When the operation information of the registered keyword list request operation is input from the operation input unit 13, the controller 12 extracts the registered keyword list (FIG. 2) from the user data recording unit 11 and outputs it to the data output terminal 15.

  In addition to executing the control corresponding to the operation information input from the operation input unit 13 as described above, the controller 12 also performs processing of the following contents generated internally.

  As described above, the program data extraction circuit 4 extracts the program data superimposed on the input television broadcast signal, and issues a program data acquisition completion notification to the controller 12 when recording in the program data recording unit 5 is completed. FIG. 5 is a flowchart showing the flow of a reproduction time measurement process for calculating the keyword reproduction frequency, which is executed when the controller 12 receives the program data acquisition completion notification, for example. The reproduction time measurement process will be described below with reference to this flowchart and the block diagram of FIG.

  The controller 12 acquires a program data acquisition completion notification from the program data extraction circuit 4. In response to this notification, the controller 12 acquires a keyword list (FIG. 2) in the user data recording unit 11 and a playback time list (FIG. 3) for each program stream (step S1). Moreover, the controller 12 acquires the program information list (FIG. 4) of the program stream in the program stream recording part 7 (step S2).

  Next, for the program information of program stream number 1 (N = 1), it is searched whether or not the keyword in the keyword list (FIG. 2) exists in this program information (step S3). FIG. 6 is an explanatory diagram showing search results at this time. As shown in FIG. 6, since the keyword “stock” of keyword number 3 exists in the program information of program stream number 1, in the keyword playback time column of keyword number 3 in the keyword list (FIG. 2), FIG. 4 is added to the reproduction time 120 minutes of the program stream number 1 recorded in the reproduction time list and the keyword recording time field of the keyword number 3 in the keyword list is further updated to the program stream number 1 recorded in the program information list of FIG. A recording time of 120 minutes is added (step S4). If the keyword in the keyword list does not exist in the program information of program stream number 1 in the search in step S3, the process in step S4 is passed.

  Next, by checking whether or not the above search has been executed in all program streams, that is, in this case, program stream numbers 1 to 3 (step S5), the search processing in steps S3 and S4 is performed in all the program streams. Repeated.

  As shown in FIG. 6, since the program information of the program stream number 2 (see FIG. 4) includes the keyword “dish” of the keyword number 2, the keyword playback time of the keyword number 2 of the keyword list (FIG. 2) The playback time 60 minutes of the program stream number 2 recorded in the playback time list of FIG. 3 is added to the column, and further recorded in the program information list of FIG. 4 in the keyword recording time column of the keyword number 2 of the keyword list. Recording time 30 minutes for program stream number 2 is added.

  Furthermore, since the program information of the program stream number 3 (see FIG. 4) includes the keyword “news” of the keyword number 1 and the keyword “stock” of the keyword number 3, the keyword playback times of the keyword numbers 1 and 3 in the keyword list 3 is added with a playback time of 30 minutes of the program stream number 3 recorded in the playback time list of FIG. 3, respectively, and further in the keyword recording time columns of the keyword numbers 1 and 3 of the keyword list, respectively. Recording time 60 minutes of program stream number 3 recorded in the program information list is added. Thus, with respect to all program streams, the total recording time for each keyword obtained by totaling the recording times of broadcast programs including keywords in the program information for each keyword, and the playback times of broadcast programs including keywords in the program information are obtained. The total playback time for each keyword obtained by summing up for each keyword is obtained. Hereinafter, the total recording time for each keyword determined in this way is also referred to as “keyword recording time” or “keyword recording time”. The total reproduction time for each keyword obtained in this way is also referred to as “keyword reproduction time” or “keyword reproduction time”.

  FIG. 7 shows the keyword playback time and keyword recording time recorded by the keyword list at this time.

  Here, a value obtained by dividing the keyword reproduction time by the keyword recording time is defined as a keyword reproduction frequency, and a keyword reproduction frequency (reproduction frequency for each keyword) is calculated. FIG. 8 shows an example in which the keyword reproduction frequency is calculated with respect to the result of FIG. The keyword reproduction frequency is calculated as an index indicating the degree of preference of the user for the keyword from the reproduction time and recording time of the program including the keyword. For example, a program with a higher degree of preference is played back many times, so that the total playback time of the program becomes longer. As a result, the keyword included in the program is a keyword having a high reproduction frequency and high user preference.

  Next, after calculating the reproduction frequency of the keyword, a keyword search is performed for each keyword in the keyword list (see FIG. 2) of the user data recording unit 11 with respect to the program data list in the program data recording unit 5. FIG. 9 is a search list in which necessary items of program data searched by this keyword search are arranged in order of, for example, the broadcast start date and time. As shown in this search list, a preference index of the program is defined for the program searched here.

  In this preference index, when there are a plurality of keywords included in each searched program data, the keyword reproduction frequency of the keyword having the highest keyword reproduction frequency is set as the preference index of the program corresponding to the program data. It is. For example, as shown in FIG. 9, two keywords “news” (reproduction frequency 0.5) and “stock” (reproduction frequency 0.83) are included in the searched program data of “9 o'clock news”. In this case, the value 0.83 of the reproduction frequency of “stock” is selected as the program preference index. Similarly, in the case of the search target program “Friday drama” shown in this search list, the numerical value 2 of the reproduction frequency of the keyword “dish” is selected as the preference index. In addition, the preference index of a program in which each keyword is not included in the program data is 0.

  Here, when there are a plurality of keywords in the program data of a certain program, the largest keyword reproduction frequency among those keywords is set as the preference index of the program. However, the method is limited to this method. Instead, for example, the keyword reproduction frequency of each existing keyword may be simply added to set the preference index of “9 o'clock news” to 1.33 and the preference index of “Friday drama” to 2.83. Furthermore, various calculations such as simply averaging the keyword playback frequency of each existing keyword and setting the preference index of “9 o'clock news” to 0.665 and the preference index of “Friday drama” to 1.415 are possible. Take the way.

  FIG. 10 shows an automatic recording reservation list recorded in the user data recording unit 11 for programs including the keywords in the keyword list in the program data (programs having a preference index of 0) picked up as described above. It is a flowchart which shows the procedure of automatic registration. The procedure for automatically registering a reserved program in the automatic recording reservation list will be described below with reference to the flowchart of FIG.

  When automatically registering a reserved program in the automatic recording reservation list, first, the preference index is low so that registration processing is performed in the automatic recording reservation list in order from the program with the lowest preference index among the picked-up programs. Corresponding program data is sequentially selected from the programs (step S11). Next, it is checked whether or not the selected program (its time zone) overlaps with the recording reservation list set and registered by the key input by the user and recorded in the user data recording unit 11 (step S12). If there is an overlap, the registration process of this program to the automatic recording reservation list is passed, and the process goes to step S17 to proceed to the registration process of the next program.

  If there is no overlap, check whether the program itself selected here or its time zone overlaps with the program already recorded in the automatic recording reservation list recorded in the user data recording unit 11 (Step S13), if there is a duplicate, after deleting the already recorded duplicate program from the automatic recording reservation list (Step S14), if there is no duplicate program, the program selected here is left as it is. Is added to the automatic recording reservation list (step S15). When the program is added to the automatic recording reservation list, the recording start time of this program is registered in the timer 14.

  Next, the recording rate of the program added here to the automatic recording reservation list is calculated and recorded as the recording item of this program together with the recording date and time of the program, the channel, etc. (step S16). This recording rate is calculated by adding a program preference index to a reference recording rate of 3 Mbps (bps: bit per second). For example, when the preference index of the program is 2, the recording rate is 5 Mbps. When the calculated recording rate exceeds a predetermined maximum recording rate of 12 Mbps, the recording rate is set to 12 Mbps with the maximum recording rate as an upper limit.

  Next, it is checked whether or not the registration process for all the picked up programs has been completed (step S17). If there is a program that has not been registered, the process returns to step S11, and then the preference index. The same registration process in steps S11 to S17 is repeated, and this flow is finished when the registration process for all the picked-up programs is completed.

  Here, as a recording rate calculation method, the reference recording rate is 3 Mbps and the maximum recording rate is 12 Mbps. However, other numerical values may be used. In calculating the recording rate, the program preference index is simply added to the reference recording rate, but the reference recording rate is multiplied by the program preference index (using the previous rate setting standard) When the preference index is 2, the recording rate is 6 Mbps), and other calculation formulas using the reference recording rate and the program preference index may be used.

  Here, the recording quality is determined by the bit rate, but it may be determined together with the resolution when the bit rate becomes low. For example, if the resolution is set to half when it is below 4 Mbps, the number of horizontal pixels is halved when the bit rate is 3.5 Mbps.

  Next, a reservation recording procedure executed based on a reservation list (recording reservation list and automatic recording reservation list by user operation) registered in the user data recording unit 11 will be described with reference to FIG.

  As described above, each recording start time of the reservation list of the user data recording unit 11 is registered in the timer 14, and when the reservation start time is reached, the timer 14 notifies the controller 12 of the reservation start time. Upon receiving this notification, the controller 12 searches the reserved list (recording reservation list and automatic recording reservation list by user operation) in the user data recording unit 11 for the corresponding reserved program, and the channel, recording time, and recording of the program. After obtaining the rate (in the case of the automatic recording reservation list), the corresponding reservation is deleted from the list. Thereafter, the controller 12 sets the tuner 3 to tune to the designated channel.

  The controller 12 instructs the encoder 6 to set the recording rate and start the encoding operation, and records the program stream output from the encoder 6 in the program stream recording unit 7. At this time, program information (broadcast date / time, channel, recording time, title, detailed information, etc.) of the program to be recorded as shown in FIG. 4 is extracted from the program data recording unit 5 as additional information of the program stream. The identification information as to whether the program to be recorded is based on the recording reservation by the user operation or the automatic recording reservation is recorded as a program information list together with the program stream number as additional information of the program stream. Further, the controller 12 sets the recording time in the timer 14 and prepares to obtain the recording end timing.

  When the timer recording end time is reached, the timer 14 notifies the controller 12 of the timer end time. Upon receiving this notification, the controller 12 sets the encoder 6 to end encoding, and also ends the recording of the program stream output from the encoder 6 in the program stream recording unit 7.

  As described above, when the program stream recorded in the program stream recording unit 7 is reproduced, the user performs the program stream list request operation as described above, for example, the recording output from the data output terminal 15. A desired program stream number is designated by the operation input unit 13 while confirming a program information list (see FIG. 4) displayed on a display means (not shown) for displaying each program information of the program stream.

  When the operation information of the reproduction operation is input from the operation input unit 13, the controller 12 sets the program stream recording unit 7 to output the designated program stream to the decoder 8 as described above. Set the program stream playback to. Further, the switch 9 is set so as to select the television broadcast signal from the decoder 8, and the reproduced television broadcast signal from the decoder 8 is output to the television signal output terminal 10. Then, the timer 14 starts measuring the reproduction time of the designated program stream.

  On the other hand, during playback of the program stream, when the playback location reaches the end of the corresponding program stream, the controller 12 sets the decoding end to the decoder 8 and also ends the output of the program stream from the program stream recording unit 7. . Further, the switch 9 is set so as to select the television broadcast signal from the tuner 3 so that the television broadcast signal from the tuner 3 is output to the television signal output terminal 10. In addition, the reproduction time measurement of the program stream measured using the timer 14 is ended, and the reproduction time is recorded in the user data recording unit 11. If the playback time of the corresponding program stream has already been recorded, the recorded playback time is added to the currently measured playback time, and the result is recorded.

  In the above example, the keyword reproduction frequency is obtained by dividing the keyword reproduction time by the recording time. However, the reproduction frequency of the keyword included in the program increases as the program having a higher degree of preference is reproduced. Therefore, the keyword reproduction frequency may be calculated by another method.

  In the above example, when calculating the keyword playback frequency, the program stream to be searched is set as all program streams, so that the general user preference is recorded regardless of whether or not automatic recording is performed. Although it is reflected in the image quality, conversely, by limiting the program stream to be searched to the program stream that has been automatically recorded, it contributes to speeding up the keyword playback frequency calculation process and the effect of recording other than automatic recording. Therefore, it is possible to reflect the user's preference in the automatically recorded program on the recorded image quality.

  For example, in the flow shown in FIG. 5, the processing of steps S3 to S4 in the flow shown in FIG. 5 is performed by changing the program stream whose identification information is “automatic recording reservation” in the program stream shown in FIG. It can be executed by targeting.

  As described above, according to the recording / playback apparatus according to the present embodiment, when selecting a program to be recorded based on a keyword input or specified in advance and automatically making a recording reservation, the change in user's preference is also taken into consideration. On the other hand, programs with a higher degree of preference can be recorded with higher recording quality. Further, in the process of making an automatic recording reservation, if a program with a reserved time overlaps, a program with a high degree of user preference can be preferentially reserved.

It is a block diagram which shows the structure of Embodiment 1 of the recording / reproducing apparatus by this invention. It is a figure which shows the example of a recording of the keyword list recorded in a user data recording part. It is a figure which shows the example of recording of the reproduction time list | wrist for each program stream unit recorded in a user data recording part. It is a figure which shows the example of a recording of the program information list recorded in a program stream recording part. It is a flowchart which shows the flow of the reproduction time measurement process for calculating keyword reproduction frequency which a controller performs. It is explanatory drawing which shows the search result of the search performed in the process of the reproduction time measurement process which a controller performs. It is explanatory drawing which shows the keyword reproduction time and keyword recording time of the keyword list recorded in a user data recording part. It is a figure where it uses for description of the calculation method of the reproduction frequency of the keyword list recorded in a user data recording part. It is a figure which shows the search list which arranged the required item of the program data searched by the keyword search in order of early broadcast start date, for example. It is a flowchart which shows the procedure which registers automatically the program which contains the list | wrist in a keyword list in program data to the automatic video recording reservation list recorded on the user data recording part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Recording / reproducing apparatus, 2 Antenna input terminal, 3 Tuner, 4 Program data extraction circuit, 5 Program data recording part, 6 Encoder, 7 Program stream recording part, 8 Decoder, 9 Switch, 10 Television signal output terminal, 11 User data recording Section, 12 controller, 13 operation input section, 14 timer, 15 data output terminal.

Claims (6)

Program information extracting means for extracting program information relating to a broadcast program from a broadcast signal;
Broadcast signal recording means for recording the broadcast signal in association with program information for each broadcast program;
Reproducing means for reproducing the broadcast signal recorded in the broadcast signal recording means;
Playback time measuring means for measuring the playback time by the playback means;
Reproduction time storage means for storing the reproduction time measured by the reproduction time measurement means for each broadcast program;
Keyword setting means for setting keywords;
Control means for controlling the operation of the entire apparatus,
When reserving keyword recording for recording a broadcast program including the keyword in program information, the control means includes:
The total recording time for each keyword is calculated by summing the recording times of broadcast programs including keywords in the program information,
Total the playback time of broadcast programs that include keywords in the program information for each keyword to obtain the total playback time for each keyword.
Obtain the playback frequency for each keyword from the total recording time and the total playback time,
The content of the keyword recording reservation setting is determined based on the reproduction frequency.   2. The recording / reproducing apparatus according to claim 1, wherein in changing the contents of the reservation setting by the control means, the setting contents of the recording quality for each broadcast program are changed based on the reproduction frequency.   In changing the contents of the reservation setting by the control means, when a reservation recording time zone of a plurality of broadcast programs overlaps, the broadcast program including the keyword with the high reproduction frequency in the program information is preferentially reserved and set. The recording / reproducing apparatus according to claim 1 or 2.   In changing the contents of the reservation setting by the control means, the reservation setting is executed in order from the program including the keyword with the low reproduction frequency in the program information, and when the reservation recording time zones of a plurality of broadcast programs overlap, 3. The recording / reproducing apparatus according to claim 1, wherein the broadcast program set with reservation is preferentially set with reservation. The broadcast signal recording means records identification information for identifying whether or not the broadcast program is recorded by the keyword recording,
2. The total recording time and the total reproduction time are determined for the broadcast program recorded by the keyword recording when the total recording time and the total reproduction time are obtained by the control means. 5. The recording / reproducing apparatus according to any one of 4 to 4. When the total recording time and the total reproduction time are obtained by the control means, the total recording time and the total reproduction time are obtained for all broadcast programs recorded in the broadcast signal recording means. The recording / reproducing apparatus according to any one of claims 1 to 4.

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