JP2684034B2 - Video screen search / editing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention has a function of an interface for interlocking a host computer and a VCR, and all the VCR has on the basis of various commands from the host computer. The present invention relates to a video screen searching / editing device capable of freely and accurately searching / editing a video screen by controlling the functions of. [Prior art and its problems] As a device capable of retrieving recorded video screens, there is a video disk system in the past. However, this requires that the screen you want to use is once recorded on a video tape and then a disc is made. However, it took a considerable amount of time and money. Also, although there is a slide system, the screens that can be searched are limited to still images, and it takes time and money to create and manage slides. [Problems of the Invention] The present invention solves the above-mentioned drawbacks of the conventional device, in which services and products in all industries such as automobile sales, real estate sales, wedding halls, and travel agencies are recorded on videotapes and recorded. For example, continuous page information is sequentially added to the screen every few seconds, and by operating the keyboard of the host computer according to the customer's request, the required screen is immediately searched based on the page information and reproduced on the TV screen. Further, if necessary, a video screen search / editing device capable of reading information related to the display screen (for example, a quotation) from the data program of the host computer and displaying the information on the display or printing out by a printing device. For the purpose of providing. [Means for Solving the Problems] According to the present invention, a host computer and a VCR are connected via a controller, and a page for positioning a video screen on an audio track of a video tape based on a command from the host computer. Means for recording information, means for reproducing the recorded positioning page information, display means for displaying a corresponding video screen based on the reproduced positioning page information, and further, if necessary, displayed on the display means. A video screen search / editing apparatus is provided, which is provided with a printing unit that prints information related to the video screen. Embodiments Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention, in which a controller 1 mainly includes a central processing unit CPU, a ROM as a storage device, a RAM, and an I / O port for processing input / output signals, The I / O port is the host computer 2
Also, it can be connected to the video deck 3, the video deck 4, or the video camera 5. The VCR 3 or VCR 4 used in the device of the present invention may be of any commercially available type and type as long as it has a remote control function and an after-recording function for the reason described later. The page information used for searching the video screen is recorded as a digital signal on the audio track of the video tape. When the VCR used in this device is of a stereo system, either one of the left and right audio tracks is used, and the remaining audio tracks can be used as they are as an audio information source. As a matter of course, the video track on the video tape
The video of the service etc. is recorded. In other words, in the case of automobile sales, by manufacturer, vehicle type, color,
Images of various combinations of optional products are recorded. For real estate sales, real estate, built homes,
Properties with various changes in appearance and interior such as rental houses are recorded. Also, in the bridal industry, various images are recorded so that a combination of wedding hall, reception style, honeymoon, etc. can be freely selected. In this way, the video screen on which the product / service is shot is continuously paginated every few seconds (for example, every two seconds) as described later, and the screen is searched / edited using the page. This pagination work, that is, the work of recording the page information (position information) on the audio track is performed after the video has been recorded on the video track of the video tape, so the dubbing function is required for the VCR. . In FIG. 1, the controller 1 to the VCR 3,
Two types of transmission means are used for 4, and one of them is a control line 7 by an infrared digital code modulation system (so-called wireless system). The control line 7 controls various operations (stopping, playing, rewinding, fast-forwarding, etc.) necessary for screen search and playback of the video decks 3 and 4. The control line 7 is not limited to the wireless system, and a serial digital coding system (wired system) may be used. In both cases, the code pattern of the digital code differs depending on the model of the VCR used, so RO
Will be M. Another transmission means is a voice input / output line 8 by interconnection of signal lines. This audio input / output line 8 allows page information (positional information) on the video tape.
Are written and read. Next, referring to FIG. 2, the host computer 2
Details of the transmission information sent from the VCR to the VCRs 3, 4 via the video controller 1 and how the page information is written and read on the audio track of the videotape. . The transmission information consists of operation command data as data for instructing the operation of the VCRs 3 and 4, and position writing data for writing position data on the audio track of the video tape. This transmission information is the upper byte. And the two bytes of the low-order byte transmitted subsequently. When the upper byte is, for example, "P", it represents operation command data, and when it is a character other than "P" (for example, "S"), it represents position write data. It is identified whether the transmission information of the configuration is operation command data or position writing data. For operation command data, when the combination of both upper and lower bytes is "PA", command "stop" operation of VCR, "PB" for "play", "PD" for "fast forward", and "PE" for It is preset to instruct "recording (post-recording)". Therefore,
For example, when the operation command data "PB" is received by the remote control sensor section in the VCRs 3 and 4 via the control line 7, the VCRs 3 and 4 execute the "playback" operation. When the operation command data is, for example, "PU" and "PV", the position data read / write operation is controlled. Therefore, assuming that after writing the operation command data "PV", position write data whose upper byte is other than "P", for example, "SH", is transmitted, 5 bytes are recorded on the audio track of the video tape. The page information composed of is continuously recorded for a length corresponding to one page (for example, one cut of a certain still image (or moving image)).
The page information consisting of 5 bytes consists of 3 consecutive 1-byte sync characters "FF" and the position data consisting of 2 bytes of the upper and lower bytes recorded subsequently, and the position of 2 bytes. A page number corresponding to the position write data "SH" is designated by the data, and the page number is recorded as a digital signal on the audio track of the video tape. In this way, a plurality of (at least two) pieces of page information each consisting of 5 bytes are continuously recorded on each page. The reason why a plurality of page information having the same configuration is required for each page is that the number of pages is checked when at least two pieces of the same page information are continuously detected when reading the page information.
Now, regarding the case where the video screen paged in this way is searched, when the operation command data “PU” is transmitted by the wireless remote control signal via the control line 7, the VCRs 3 and 4 perform the read operation. Then, the above-mentioned page information of 5 bytes is sent to the video controller 1 through the audio input / output line 8, and the video controller 1 sends the position read data of 3 bytes shown in FIG. 2 to the host computer. Send it to 2. The position read data has a terminator (end identification signal) added to upper and lower bytes consisting of 2 bytes representing the number of pages. The position read data detected / transmitted by the controller 1 is
It is transferred to the host computer 2 and is compared with the number of pages that the operator has requested and key operation input following the operation command “PU” is compared, and at the time of coincidence, the desired video image is displayed on the TV screen. Project on top. At this time, the video image displayed on the TV screen is a still image, and after it is confirmed that the video screen is desired by the operator, for example, by pressing the return key, reproduction of the video screen is started and the TV screen is displayed. A video image corresponding to the page desired by the operator is displayed on the screen. It should be noted that the called video image may be directly put into a reproduction state without once being a still image. Referring to FIG. 3, a program content of a ROM (read-only memory) built in the video controller 1 is shown in a flowchart. This program starts at the same time when the power of the controller 1 is turned on (or at the same time as the reset operation after the power is turned on).
In the sub-routine, the entire hardware of the video controller 1 is checked, and in step 302 it is confirmed whether or not there is an error. If an error is detected, the controller 1 cannot be used. Therefore, in step 303, the error is displayed with a lamp, then in step 304 the use of the I / O channel is prohibited, and after that, the execution of the program is forced. To finish. Note that the error location may be displayed in characters instead of simply displaying an error lamp. If it is confirmed in step 302 that there is no error, the process proceeds to step 305, where the control line output is initialized, that is, the power of the VCRs 3 and 4 is once turned off, and then the wireless remote controller is performed in step 306. Then, for example, the power of the video decks 3 and 4 is turned on, and the process proceeds to step 306. After that, it proceeds to the main loop shown in steps 307 to 310. In step 307 of the main loop, the presence or absence of transmission information (2-byte structure) from the host computer 2 is confirmed, and if there is any transmission information, the transmission information reception processing of the subroutine 400 shown in detail in FIG. 4 is executed. To be done. That is, the transmission information reception process is performed as follows. When a byte is received (step 402), it is checked whether it is the low byte (step 40).
3), step 404 if it is the high byte
Then, the 1-byte received data is once stored in the buffer area of the RAM, and then the process once returns to the main loop of FIG. When the next 1 byte is received after one round of the main loop (step
402), if it is the lower byte, go to step 405.
In this step 405, the upper byte previously stored in the buffer area is read out and the upper byte and the lower byte 2
After aligning the bytes, it is confirmed whether or not the transmission information from the host computer 2 is operation command data, that is, whether or not the upper byte is "P". If the upper byte is not "P", the flow advances to step 406 to temporarily store the position write data in the buffer area of the RAM. On the other hand, if it is determined in step 405 that the command data is operation command data, the process proceeds to step 407 to determine whether or not the data is a command for writing position data, that is, whether or not the transmission information is the above-mentioned “PV”. It is confirmed. If it is determined to be "PV" here, the position data write status is set in step 408. If it is not "PV", it is confirmed in step 409 whether or not it is a command for instructing the further reading of the position data, and if it is determined that it is, the setting of the position data read status is performed in step. Done at 410. If it is determined that the command is not a command for instructing the reading of position data, it is finally determined to be a command for controlling the operation control of the VCRs 3 and 4, that is, "playback", "fast forward", etc. Then, in step 411, the output control of the control line 7 is performed. After the subroutine 400 of the process of receiving the transmission information from the host computer 2 as described above, in step 308 of the main flow of FIG. 3, it is determined whether or not there is the transmission data (which is composed of 3 bytes) to the host computer 2. It is confirmed. If there is transmission data, the flow proceeds to the subroutine 500 of the position data transmission processing whose details are shown in FIG. In this subroutine 500, it is first checked whether or not the current position data read status has already been set (step 501), and if so, whether or not upper byte transmission and lower byte transmission have been completed. Are confirmed in steps 502 and 503, respectively. If the upper byte has already been transmitted but the lower byte has not yet been transmitted, in step 503, the lower byte is repeatedly transmitted through the main loop composed of steps 307 to 310 in FIG. It is confirmed. When the transmission of the upper and lower bytes is completed, a terminator (end identification signal) is added in step 504 to form a 3-byte structure (see FIG. 2), and then transmission to the host computer 2 is performed. After that, the transmission data is cleared from the buffer area (step 505). In this way, the position data transmission processing subroutine 50
When 0 is completed, it is confirmed in step 309 whether the position data writing status has already been set, and if it is the position data writing status (that is, step in FIG. 4).
If the setting has been made in step 408), the procedure proceeds to the subroutine 600 of the position data writing process whose details are shown in FIG. The position data writing process first confirms whether or not there is a write channel available on the audio track of the video tape (status 601).
By steps 602 to 608, the high-order byte and the low-order byte as position data consisting of 2 bytes are written in this order following the 3-byte synchronization character. After the position data write routine 600 described above, the third
As shown in the main flow of the figure, it is confirmed in step 310 whether or not the position data read status has already been made. When the position data read status is set, a position data read process subroutine 700 whose details are shown in FIG. 7 is executed. In this position data reading process, first in step 701, it is confirmed whether or not there is data on the reading channel. If there is data, one byte of data is read as shown in step 702, and then it is confirmed whether or not the data is the synchronization character "FF" (step 703). The data read in this step 703 is the synchronization character "FF".
If it is determined that the count value of the synchronous character read counter is incremented by +1 (step 71
1) Then, in step 712, it is confirmed whether or not the count value of the synchronous character read counter is larger than 2, and if it is judged to be smaller than 2, the process returns to the main loop in FIG. The character "FF" is read in step 702, and then steps 703, 711 and 712 are executed. When all three consecutive sync characters "FF" of the page information shown in FIG. 2 are read in step 702 and the count value of the sync character read counter reaches 3 through steps 703 and 711,
It is first determined in 712 that the count value is greater than 2, and step 7
Proceed to 13. Therefore, the count value of the synchronous character read counter finally becomes 2 when three synchronous characters “FF” are read in succession. On the other hand, if it is determined in step 703 that the read data is not a synchronization character, then in step 704 the count value of the synchronization character read counter is 2
Or it is confirmed whether it is larger than 2. If the count value is greater than 2, it is confirmed in step 705 whether the byte read in step 702 is the upper byte, and if it is the upper byte, the upper byte is stored in the buffer area (step 706). Return to Fig. 3 main flow. If it is determined in step 705 that it is not the upper byte, that is, the lower byte, it is temporarily stored in the buffer area for later combination with the upper byte (step 707).
Then, in step 708, if there is the previous data, it is confirmed whether or not the data matches the previous data (step 708). If they do not match, the read data is stored (updated) in the previous data buffer area in step 710 and the data match. Step if any
As data to be transmitted to the host computer 2 in 709,
It is stored in the host transmission data area. Note that step 70
The purpose of checking whether or not the data matches the previous data in 8 is to improve the accuracy of page search. In the case of this embodiment, the position data following three consecutive synchronization characters “FF” is 2
The position data is confirmed only when they completely match. From the above description, it is understood that the principle of recording the positioning data on the audio track of the video tape, searching the position of the video tape based on the data, and promptly calling the desired image can be understood. [Effects of the Invention] As described above, according to the present invention, even if a product is difficult to display, the details can be shown to the customer on the video screen. The same effect as above can be expected, and it is possible to prevent troubles due to the difference in product image after the product is delivered. Also, even when selling real estate, housing for sale, etc., you can show a large number of properties to the customer in a short time without bothering to guide the customer to the site, and various options to combine with the housing are available as video images. Since it can be prepared in advance, there is an effect that the product selection by the customer is easy and it becomes a high standard. Also,
Furthermore, according to the customer's request, the details of the desired product, estimated price, etc. are immediately printed out from the printing device connected to the host computer, making it possible to accurately display the price according to the payment conditions etc., greatly reducing the operating cost. Is effective for. As described above, it is obvious that the application field of the present invention is wide and can be applied to the construction industry, wedding halls, jewelry precious metal stores, and various educational systems.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing the basic configuration of the present invention.
FIG. 2 is an explanatory diagram for explaining details of transmission information used in the embodiment of the present invention and details of recording page information on a video tape, and FIG. 3 shows a basic program of a controller in one embodiment of the present invention. A flow chart for explanation, FIGS. 4 to 7 are flow charts showing the details of the subroutine steps 400, 500, 600, 700 shown in FIG. In each figure, 1 ... Controller, 2 ... Host computer, 3,4 ... VCR, 7 ... Control line, 8 ... Audio input / output line.

Claims (1)

(57) [Claims] A video screen search / editing device comprising a host computer, display means, a video deck having an after-recording function connected to the display means, and a controller connected between the host computer and the video deck. Based on a write command from the host computer, the controller uses the post-recording function of the VCR to record page information for positioning the video screen on the audio track of the video tape, and the host computer. Page information reproducing means for reproducing the positioning page information recorded on the audio track of the video tape based on the read command of the above, and the desired position information inputted to the host computer and the positioning reproduced by the page information reproducing means. Compare with page information, output matching Is provided with page information comparison means for outputting a non-coincidence output, and function control means for controlling various operations of the VCR based on the coincidence output or the non-coincidence output from the page information comparison means, which are input to the host computer. A video screen search / editing device, characterized in that a video screen corresponding to the arbitrary desired position information can be searched and displayed on the display means. 2. The device according to claim (1), wherein the device further comprises information printing means for printing information related to the video screen displayed on the display means. apparatus. 3. In the device according to claim (1), transmission information consisting of operation command data for controlling the operation of the VCR and position write data recorded on an audio track of the video tape is high-order. A video screen search / editing device comprising a combination of a byte and a lower byte, and the upper byte identifies whether the operation command data or the position write data. 4. In the device according to claim (1), the positioning page information recorded on the audio track of the video tape has three 1-byte synchronization characters and a 2-byte position composed of an upper byte and a lower byte. A video screen search / editing device characterized by being composed of data and data.