JP4335159B2 - RECEIVING DEVICE, COMMUNICATION SYSTEM, WIRELESS COMMUNICATION SYSTEM, INFORMATION OUTPUT METHOD, PROGRAM, AND RECORDING MEDIUM CONTAINING THE PROGRAM - Google Patents

Description

  The present invention relates to a wireless communication system for transmitting and displaying image data by wireless communication such as a wireless LAN, and more particularly to a wireless communication system capable of examining the communication performance of a plurality of antennas. The present invention also relates to a receiving device, a communication system, a wireless communication system, an information output method, a program, and a recording medium on which the program is recorded.

  In recent years, portable portable wireless communication devices such as liquid crystal television devices and CRT television devices have been proposed, using an SS (Spread Spectrum) wireless system compliant with IEEE 802.11 or IEEE 802.11B. The one that transmits and receives video signals has been proposed. Furthermore, this wireless communication apparatus can be used not only for the wireless system described above, but also for a next-generation mobile phone apparatus, PHS (Personal Handy-Phone System), or Blue Tooth whose data transfer speed is increased. What can be done is also proposed.

  In such a radio system, a reception antenna is required. Generally, the antenna length of the antenna element 12 for the frequency band 2.4 GHz band used in the SS radio system, the Blue Tooth radio system, and the like is wireless. It is about 3 cm corresponding to ¼ of the wavelength.

  This antenna uses a pair of main antenna elements that are perpendicular to each other (see Patent Document 1). The pair of antenna elements can secure a gain in each direction by arranging the arrangement relationship of the antenna elements in the vertical direction, and the polarization plane of the radio wave radiated from the transmitter in wireless communication, It is possible to extract reception performance corresponding to the change in direction.

  In a transmission device that receives image data and transmits it using the SS wireless method, and a display device that receives and displays the image data, transmission is performed in a state in which each component is housed in a housing in an inspection stage before shipment. A certain image is transmitted from the device, and the display state of the image displayed on the display device is checked to determine whether it is acceptable or not.

  In such an inspection process, when a product requiring repair is generated, it is managed by a product number (product ID). However, for products that require repair before shipping, it is conceivable to rewrite the product number to make it easier to recognize that repair is required.

  Here, in Patent Document 2, the product number can be rewritten through an authentication unit using a personal identification number for preventing the product number from being tampered with, while the dark number is prevented from being tampered with. Are listed.

Patent Document 3 describes a non-contact type data carrier that does not malfunction even if it is shipped in a writable storage area in a writable state. The non-contact type data carrier described in Patent Document 3 stores shipping identification information that permits data writing to this area in a user-writable storage area, and decodes the shipping identification information together with a radio input signal. If the wireless input signal is for testing, it is enabled. If the wireless input signal is normal, it is disabled. Thereby, even if shipped as it is, malfunction can be avoided.
JP-A-2-278903 (published on November 15, 1990) JP 63-37783 A (published February 18, 1988) JP 2004-70763 A (published March 4, 2004)

  However, when the technique of Patent Document 2 is used on an actual production line, an operation to rewrite the product number set before shipment can be introduced for a product having a certain product number, so that rewriting change is remembered. It is necessary to describe the change history for For this reason, it takes time for quality control. Also, apart from a major disassembly work of the product, etc., it is questionable whether it will be necessary to rewrite the product number in the repair work to the extent that some parts are replaced. On the other hand, some management means is required for a product group that requires repair work. In particular, strict product management is required when the product structure is composed of a plurality of parts.

  If the product number (product ID) is used for repairing the reception unit or the transmission unit housed in the housing, the numerical value is managed as a skipped value, which is inconvenient in the repair process. In addition, it is necessary to have a means for dealing with the fact that the product in the repair process can be shipped.

  Further, in the configuration of Patent Document 3, the shipping identification information is used to make it impossible to write data after the final inspection, thereby preventing the destruction of important data. In addition, although the shipment identification information is information on whether or not the final inspection has been performed, it is not possible to know information on whether or not the product needs repair work.

  In view of such circumstances, an object of the present invention is to provide a wireless communication system capable of confirming whether or not repair is completed for a product requiring repair in an inspection process before shipping. Is.

  In order to solve the above-described problem, the receiving apparatus according to the present invention uses the repair information as identification information indicating that the self apparatus is in a repair state. When a predetermined signal is input, the repair information is stored in the storage device. Determining means for determining whether or not repair information is stored in the storage device, and output control means for outputting the repair information from the output means when it is determined that the repair information is stored in the storage device. It is characterized by.

  According to the above configuration, when a predetermined signal is input, the determination unit determines whether repair information is stored in the storage device. The predetermined signal is a signal that is input when it is necessary to determine whether or not repair information is stored in the storage device. The case where it is necessary to determine whether or not repair information is stored in the storage device is, for example, whether or not the receiving device can be shipped at the stage of shipping the receiving device. This is the case to confirm. That is, it is a case where it is confirmed whether or not the receiving device is in a repaired state so that the shipping device is not shipped in a repaired state.

  The repair information is identification information indicating that the device itself is in a repair state. The case where the own apparatus is in a repaired state is, for example, a case where the defective part is waiting for repair or a case where the defective part is being repaired. Thus, when the device itself is in a repaired state, repair information is stored in the storage device. Note that the repair information may be identification information indicating that the device itself is in a state where shipment is not possible.

  When it is determined that the repair information is stored in the storage device, the output control means outputs the repair information from the output means. That is, the output control means controls the repair information read from the storage device to be output by a predetermined output method. The output means is not particularly limited as long as the repair information can be recognized outside the apparatus itself, and examples thereof include a display means and an audio output means.

  When the output means is a display means, the repair information is displayed as a character string or an image, so that the information can be visually recognized. Further, when the output means is an audio output means, the repair information is output as sound, so that the information can be audibly recognized. Therefore, it is possible to recognize whether repair information is stored in the storage device at a predetermined timing. For this reason, for example, it is possible to avoid shipping a receiving device in a repaired state.

  In the receiving apparatus according to the present invention, when the identification information indicating that the own apparatus is in a shippable state is the shippable information, the determination unit further determines whether or not the shippable information is stored in the storage device. Preferably, the output control means outputs the shippable information from the output means when the determination means determines that only the shipable information is stored in the storage device.

  According to the above configuration, the determination unit determines whether or not the shippable information is stored in the storage device, in addition to determining whether or not the repair information is stored in the storage device. Here, the shippable information is identification information indicating a state in which the receiving device can be shipped. That is, the shipment availability information is not particularly limited as long as it indicates a status that can be shipped, and examples thereof include a product number. The product number is identification information assigned to each device. In the stage of determining whether or not the product can be shipped, the product number is identification information indicating that the product can be shipped without a defective part. is there.

  In addition, when it is determined that only the shippable information is stored in the storage device, the output control unit outputs the shippable information from the output unit. That is, when only the repair information is stored in the storage device, or when the repair information and the shippable information are stored, the shippable information is not output. Therefore, the shippable information is output only when the device itself is not in a repaired state and is in a state where shipping is possible.

  When only the repair information is stored in the storage device, or when both the repair information and the shippable information are stored in the storage device, the determination unit determines that the repair information is stored. Therefore, the output control means outputs repair information from the output means. Therefore, it can be recognized that the repair information is stored in the storage device, and it is possible to avoid shipping the receiving device in the repaired state.

  In the receiving apparatus according to the present invention, it is preferable that the storage area for storing the repair information and the storage area for storing shippable information are the same storage area.

  According to the above configuration, the repair information and the shippable information are stored in the same storage area. That is, when repair information is stored in advance, the repairable information is overwritten and the shippable information is stored. On the other hand, when the shippable information is stored in advance, the repair information is stored by overwriting the shippable information. For this reason, repair information is stored in the storage device of the receiving device in the repaired state, and the repairable information is erased and shipable information is stored in the storage device of the receiving device that has left the repaired state. . That is, the storage device stores only one of the repair information and the shippable information, and it is easy and reliable to determine whether the repair information is stored.

  In order to solve the above problems, the receiving apparatus according to the present invention uses the identification information indicating that the own apparatus is in a repair state as repair information, and the identification information indicating that the own apparatus is in a shippable state. Then, when a predetermined signal is input, a determination unit that determines whether the information stored in the storage device is the repair information or the shippable information, and the storage is performed based on the determination result. Output control means for outputting information stored in the apparatus from the output means.

  According to the above configuration, when a predetermined signal is input, the determination unit determines whether repair information or shippable information is stored in the storage device. The predetermined signal is a signal that is input when it is necessary to determine whether repair information or shippable information is stored in the storage device. The case where it is necessary to determine which information is stored in the storage device is, for example, a case where it is confirmed whether or not the receiving device is ready for shipment. The repair information is identification information indicating that the own apparatus is in a repaired state, and the shippable information is identification information indicating that the own apparatus is in a shippable state.

  The output control means causes the output means to output information (repair information or shippable information) stored in the storage device based on the determination result of the determination means. The output means is not particularly limited as long as the repair information can be recognized outside the apparatus itself, and examples thereof include a display means and an audio output means.

  When the output means is a display means, the displayed information can be visually recognized. Further, when the output means is an audio output means, it is possible to recognize the output information audibly. Therefore, information stored in the storage device can be recognized at a predetermined timing. For this reason, it is possible to confirm whether the receiving device is in a repaired state or in a shippable state, and it is possible to avoid shipping the receiving device in a repaired state.

  In the receiving apparatus according to the present invention, the storage device stores a repair information storage area for storing repair information, a shipping information storage area for storing shippable information, and information to be used among the repair information and the shippable information. It is preferable that the determination unit determines whether the information stored in the use information storage area is the repair information or the shippable information.

  According to the above configuration, the repair information and the shippable information are stored in different storage areas (repair information storage area and shipping information storage area). The receiving device uses any one of the repair information and the shippable information, and the storage device has a use information storage area for storing information to be used.

  The output control means causes the output means to output information (repair information or shippable information) stored in the use information storage area based on the determination result of the determination means. For this reason, it is possible to confirm whether the receiving device is in a repaired state or in a shippable state, and it is possible to avoid shipping the receiving device in a repaired state. In addition, since the storage area for storing repair information and the storage area for storing shippable information are different storage areas, the repair information stored in the storage apparatus is erased even in a receiving apparatus that has left the repair state. The shippable information can be stored without any trouble. For this reason, repair information can be left as a history and can be used as a reference in the event of a future failure.

  In order to solve the above-described problems, a communication system according to the present invention includes any one of the reception devices described above and a transmission device connected to be able to communicate with the reception device.

  According to said structure, the receiver connected so that communication with the transmitter is possible outputs repair information from an output means. Further, even when there is a defective part on the transmission device side, since communication is not normally performed, a message indicating that it is in a repair state is output from the output means. Therefore, even when a defective part is found in either the transmitting device or the receiving device and the repaired state is entered, the repair information is output, so that it is possible to avoid shipping accidentally.

  In the communication system according to the present invention, repair information and / or shippable information is stored in the transmitter, and when the predetermined signal is input, the transmitter can repair information and / or shippable. The information is transmitted to the receiving device, and the receiving device preferably stores the received repair information and / or shippable information in the storage device.

  According to the above configuration, even when the repair information and / or shippable information is stored in the transmission device, each information is transmitted from the transmission device to the reception device when a predetermined signal is input. Can be transmitted and stored in the storage device of the receiving device. Therefore, when a predetermined signal is input, it is determined whether or not the repair information is stored in the storage device of the reception device, thereby confirming whether or not the transmission device and / or the reception device is in a repair state. can do.

  In the communication system according to the present invention, it is preferable that a communication method between the transmission device and the reception device is wireless communication. According to the above configuration, whether or not repair information is stored in the storage device is determined even when the transmission device and the reception device are not directly connected or not integrated. Thus, it can be confirmed whether or not each device is in a repaired state.

  In the communication system according to the present invention, it is preferable that recognition information is stored in each of the transmission device and the reception device, when the identification information for the transmission device and the reception device to recognize each other is recognition information. According to said structure, the recognition information for recognizing a receiver is memorize | stored in the transmitter. On the other hand, the reception device stores recognition information for recognizing the transmission device. Therefore, it becomes possible to recognize each other and to perform wireless communication with each other.

  The present invention provides a wireless communication system including a transmission device and a reception device, comprising a selection unit that can select whether or not to function the respective antennas of the transmission device and the reception device during an inspection process, and the transmission device and the reception device are Further, it is characterized in that storage means for newly storing a repair number in addition to a product number when a product to be repaired in the inspection process is provided.

  The product number and the repair number stored in the storage means have recognition information for recognizing that the transmitting device and the receiving device making a pair are paired. Here, the recognition information is characterized in that the product number and the repair number stored in the storage means of the transmitting device and the receiving device that make a pair are the same.

  In addition, the transmission device or the reception device includes a presentation unit indicating that the storage unit stores a repair number. The presenting means is preferably a display means.

  According to the present invention, since the repair number is stored in the storage means, the repair target product can be managed with an appropriate number in the inspection process, and the work efficiency is improved.

  In addition, since information related to a pair of transmitting device or receiving device is stored, it is possible to identify a combination of a pair of transmitting device and receiving device.

  Further, since the storage means includes a presentation means indicating that the repair number is stored, it is possible to determine whether the product being checked by the coordinator in the inspection process is being repaired. Therefore, it can be recognized that the product is a product to be repaired before shipping, and erroneous shipping of the product being repaired can be prevented.

  In order to solve the above-described problem, the information output method according to the present invention stores the repair information when a predetermined signal is input, assuming that the identification information indicating that the device is in a repair state is repair information. It is determined whether or not it is stored in the device, and when it is determined that repair information is stored in the storage device, the repair information is output from the output means.

  According to said structure, when a predetermined signal is input, it is determined whether repair information is memorize | stored in the memory | storage device. When it is determined that the repair information is stored in the storage device, the repair information is output from the output means. Thereby, it is possible to recognize whether or not repair information is stored in the storage device at a predetermined timing, and for example, it is possible to avoid shipping a receiving device in a repaired state.

  In the information output method according to the present invention, if the identification information indicating that the device is in a shippable state is the shippable information, the shippable information is further stored in the storage device when a predetermined signal is input. It is preferable to determine whether or not only shipment possible information is stored in the storage device, and output the shipment possible information from the output means.

  According to the above configuration, when a predetermined signal is input, in addition to determining whether or not the repair information is stored in the storage device, whether or not the shippable information is stored in the storage device is determined. Determined. When it is determined that only the shipping information is stored in the storage device, the shipping information is output from the output unit. As a result, it is possible to confirm that the device itself is not in a repaired state but is ready for shipment.

  In order to solve the above problems, the information output method according to the present invention can use the identification information indicating that the own device is in a repaired state as repair information, and can ship the identification information indicating that the own device is ready for shipping. As information, when a predetermined signal is input, it is determined whether the information stored in the storage device is the repair information or the shippable information. Based on the determination result, the information is stored in the storage device. The stored information is output from the output means.

  According to the above configuration, when a predetermined signal is input, it is determined whether the information stored in the storage device is repair information or shippable information, and is stored in the storage device based on the determination result. Output information. This makes it possible to recognize whether the information stored in the storage device is the repair information or the shippable information at a predetermined timing, and avoids shipping the receiving device in a repaired state. can do.

  In the information output method according to the present invention, the storage device stores a repair information storage area for storing repair information, a shipping information storage area for storing shippable information, and information to be used among the repair information and the shippable information. And a use information storage area for storing the information, and determining whether the information stored in the use information storage area is the repair information or the shippable information, and based on the determination result, It is preferable to output the information stored in the usage information storage area from the output means.

  According to the above configuration, the storage device has a repair information storage area for storing repair information, a shipping information storage area for storing shippable information, and a use information storage area for storing information to be used. .

  The output control means causes the output means to output the information (repair information or shippable information) stored in the use information storage area based on the determination result of the determination means, so that the receiving apparatus is in a repair state or shipped. It is possible to confirm whether it is possible. As a result, it is possible to avoid shipping the receiving device in a repaired state.

  The receiving device may be realized by a computer. In this case, a control program for the receiving device that causes the receiving device to be realized by the computer by causing the computer to operate as the above-described means, and the program are recorded. Computer-readable recording media are also within the scope of the present invention.

  As described above, the receiving apparatus according to the present invention, when the identification information indicating that the own apparatus is in the repair state is the repair information, stores the repair information in the storage device when a predetermined signal is input. Determination means for determining whether or not repair information is stored in the storage device, and output control means for outputting the repair information from the output means when it is determined that the storage information is stored in the storage device. In the timing, it is possible to recognize whether or not repair information is stored in the storage device.

[Embodiment 1]
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the accompanying drawings.

  First, as shown in FIG. 1, the wireless communication system of the present invention receives video data and transmits it in the SS wireless system, and receives and displays the video data. It is configured by a combination with a portable display unit (receiving device) 30.

  The video transmission unit 20 is, for example, a transmission means using a carrier wave in a frequency band of several GHz order or more in order to receive a CATV signal or a TV radio wave and send a relatively large capacity video signal to the display unit 30. It is preferable. For this reason, a communication system such as a so-called SS (Spread Spectrum) radio system such as a direct spread (DS) system or a frequency hopping (FH) system is preferable.

  The display unit 30 mainly includes a display screen unit 31 formed of a liquid crystal panel, semicircular speaker storage units 32 arranged on the left and right sides of the display screen unit 31, a stand 33, a video processing circuit (not shown), and a display unit. The handle 34 and the like for making the whole portable. Although a liquid crystal panel is used for the display screen unit 31, it is not particularly limited to this, and any member that constitutes a display element may be used. In particular, the display element is preferably a thin display element suitable for portability, and examples thereof include organic / inorganic EL display elements, FED display elements, and plasma display elements.

  These SS wireless transmission / reception devices (video transmission unit 20 and display unit 30) are provided with a circuit including a transmitting means and a plurality of antennas.

  Next, antennas used for the units 20 and 30 will be described.

  2A and 2B are perspective views showing the structure of this antenna. FIG. 2A is an inverted L antenna, and FIG. 2B is an inverted F antenna. The inverted L-type antenna 50 includes a rectangular antenna substrate 51 and an antenna element portion 52 made of a side-surface inverted L-shaped metal plate. On the other hand, the inverted F-type antenna 55 includes a rectangular antenna substrate 56 and an antenna element portion 57 made of a side-face inverted F-shaped metal plate. Either type of antenna may be used, but in the present embodiment, an inverted F antenna is used.

  As shown in FIG. 3, the video transmission unit 20 houses components such as a center board 22 on which a tuner portion 23, a video terminal 24, and the like are mounted in the casing of the top cover 21a, the front panel 21b, and the bottom cover 21c. The top cover 21a and the front panel 21b are removable. As shown in FIG. 3, an antenna 26 and an antenna 27 are arranged inside the casing of the video transmission unit 20 so as to maintain an orthogonal relationship with each other. It is connected to the wireless communication transmission unit 25 via. Thereby, similarly to the antenna arrangement in the display unit 30 (details will be described later), the arrangement relationship between the antennas is arranged in the vertical direction, so that a gain in each direction can be secured. In this way, it is possible to extract reception performance corresponding to changes in the polarization plane and direction of radio waves radiated from a transmitter in wireless communication.

  As shown in FIG. 4, the antennas 41 to 43 are connected to the wireless communication receiver 46 via a cable while being fixed to the front cabinet 47 of the display unit 30 via screws. The antennas 41 and 42 are disposed above the speakers 44 and 45 in the speaker storage unit 32 so that the mounting directions thereof are different from each other by 90 degrees. The antenna 43 is disposed in a portion in which the display screen unit 31 is accommodated so that the mounting directions of the antennas 41 and 42 are different from each other by 90 degrees. Thereby, it becomes possible to secure the gain in each direction by arranging the arrangement relationship of the antennas 41 to 43 in the vertical direction, and the polarization plane and direction of the radio wave radiated from the transmitter in the wireless communication It is possible to extract the reception performance corresponding to the change of. In this embodiment, the antennas 41 to 43 are provided. However, the present invention is not limited to this, and the antenna 41 and the antenna 42 may be provided.

  In addition, although the antenna which each unit 20 and 30 has is mutually arrange | positioned in the orthogonal | vertical direction, it does not necessarily restrict to this. In particular, the relationship is preferably an anisotropic arrangement. Further, the number of antennas may be two or more, and the number is not particularly limited.

  FIG. 5 shows a functional block diagram of the wireless communication system according to the present invention.

  The video transmission unit 20 generally includes a receiving unit 61 that receives a broadcast signal, a video processing unit 62 that processes a video signal of the received broadcast signal, and an audio process that processes an audio signal of the received broadcast signal. It comprises an encoder 64 for compressing the signal processed by the means 63, the video processing means 62 and the audio processing means 63, a wireless transmission / reception means 65 for transmitting the signal compressed by the encoder 64 to the display unit 30, and the like. The wireless transmission / reception unit 65 includes a wireless communication transmission unit 25, antennas 26 and 27, and cables 28 and 29.

  The display unit 30 generally includes a wireless transmission / reception unit 79 that receives a video signal transmitted from the wireless transmission / reception unit 65 of the video transmission unit 20, a decoder 70 that decompresses the video signal received by the wireless transmission / reception unit 79, and a decoder. Video processing means (output control means) 71 that performs signal processing on the video signal expanded at 70, display means (output means) 72 that displays video processed at the video processing means 71, and audio signal expanded at the decoder 70 A sound processing means (output control means) 73 for performing signal processing, a speaker (output means) 74 for outputting sound processed by the sound processing means 73, a microcomputer (determination means) 75 for controlling the display unit 30, and a ROM ( (Memory device) 76 and a remote control device (hereinafter abbreviated as a remote controller) 80 for operating the display unit 30. And a light receiving unit 78 or the like for receiving.

  The video transmission unit 20 sends the broadcast signal received by the receiving means 61 to the video processing means 62 and performs signal processing such as removal of the video carrier wave, and performs operations such as video compression processing to send the wireless communication signal again. A series of operations are mainly performed, such as being superimposed on the carrier frequency set by the wireless transmission / reception means 65 and sent to the display unit 30 via the encoder 64 to be performed. In order to appropriately perform these processes, the video transmission unit 20 includes a microcomputer 67 and a ROM 68 for storing and holding various setting values. Further, as means for enabling the setting value recorded in the ROM 68 to be changed via the microcomputer 67, light receiving means 69 for receiving a predetermined signal from the remote controller 80 may be provided. For the control signal, a communication path may be used in which the wireless transmission / reception means 79 communicates wirelessly with the wireless transmission / reception means 79 via the light receiving means 78 and the microcomputer 75 provided also on the display unit 30 side.

  The display unit 30 receives the broadcast signal transmitted from the wireless transmission / reception means 65 by the wireless transmission / reception means 79, performs processing such as removal of communication waves, etc., and performs video processing via the decoder 70 that performs operations such as video signal processing. A series of operations such as displaying from the processing means 71 to the display means 72 are mainly performed. In order to appropriately perform these processes, the display unit 30 has a microcomputer 75 and a ROM 76 for storing and holding various set values. Further, as a means for enabling the setting value recorded in the ROM 76 to be changed via the microcomputer 75, a light receiving means 78 for receiving a predetermined signal from the remote controller 80 is provided to perform various controls. Is possible.

  The ROMs 68 and 76 are EPROMs, for example, which send signals through the light receiving means 69 and 78 and write product numbers (product IDs; shipping information) from the microcomputers 67 and 75 to the ROMs 68 and 76 in advance. As will be described in detail later, when a repair is required in the inspection process, a repair number (repair ID; repair information) is written in addition to the product ID. The product ID and the repair ID are completely different numbers (for example, a combination of alphabets and numbers), and those that are not confused by the operator are determined in advance. At the same time, information (product ID) of the video transmission unit 20 and the display unit 30 that are paired is also stored in the ROMs 68 and 76. In this way, when one of the video transmission unit 20 and the display unit 30 becomes a product to be repaired, it becomes easy to specify the other unit, and the work of the inspection process can be rapidly advanced.

  Now, the video transmission unit 20 and the display unit 30 are inspected in the inspection process before shipment. The inspection regarding the communication performance of the antenna will be described below.

  All the video transmission units 20 and the display units 30 in the inspection process are in a power-on state, and the antennas of all the display units 30 are in an operable state. On the other hand, the antenna of the video transmission unit 20 is in a function stop state. That is, the microcomputer 75 of the display unit 30 can receive a signal from the wireless transmission / reception means 79 having the antennas 41, 42, 43. On the other hand, the microcomputer 67 of the video transmission unit 20 stops signal output to the wireless transmission / reception means 65 having the antennas 26 and 27. This has a control function related to input / output of signals of the wireless transmission / reception means 65 and 79 inside the microcomputers 67 and 75, and is turned on / off in accordance with instructions from an operator who operates the remote controller 80.

  As shown in FIG. 7, the operator gives an instruction using the remote controller 80 to turn on the signal output from the microcomputer 67 of the video transmission unit 20 to be inspected to the antenna. The operator selects an antenna to be inspected from the remote controller 80 for the pair of the video transmission unit 20 and the display unit 30 on the inspection line. That is, the antenna to be functioned is selected. At this time, the operator selects at least one or more antennas in the video transmission unit 20 and the display unit 30. And it selects so that the communication performance of each antenna may be known from the combination of the selected antenna.

  The selection signal sent from the remote controller 80 is input to the light receiving means 69 and 78 and transmitted to the microcomputers 67 and 75. The selection signal sent from the remote controller 80 is input to the light receiving means 69 and 78, and the microcomputers 67 and 75 select from the antennas 26 and 27 of the wireless transmission / reception means 65 and the antennas 41, 42 and 43 of the wireless transmission / reception means 79. Make the selected item work.

  The selection signal sent from the remote controller 80 is input to the light receiving means 69 and the microcomputer 67 selects and functions the antennas 26 and 27 of the wireless transmission / reception means 65. At the same time, the microcomputer 67 passes through the wireless transmission / reception means 65 and 79. The antenna information of the display unit 30 may be transmitted to the microcomputer 75 wirelessly.

  Next, the microcomputer 67 of the video transmission unit 20 transmits the inspection image data from the wireless transmission / reception means 65 to the wireless transmission / reception means 79 of the display unit 30 via the reception means 61, the video processing means 62, and the encoder 64 by the SS wireless method. To do. The microcomputer 75 of the display unit 30 causes the display means 72 to display the image data received by the wireless transmission / reception means 79 through the decoder 70 and the video processing means 71. The operator compares the received image displayed on the display unit 72 with the reference image to determine whether the reception state is good or bad. In this way, since at least one or more antennas of the transmission device and the reception device can function and the communication state can be inspected, the quality of each antenna can be inspected from the combination of functioning antennas.

  Next, if there is a problem in the antenna portion, repair is necessary, so the operator inputs a repair ID using the remote controller 80. The microcomputers 67 and 75 write the repair ID in the ROMs 68 and 76.

  The reception state may be determined by comparing with a reference signal using an inspection device, or may be determined by comparing the received image with a reference image signal read by the inspection device.

  As shown in FIG. 7, when the inspection is completed, the operator turns off the signal output from the microcomputer 67 of the video transmission unit 20 to the wireless transmission / reception means 65 using the remote controller 80.

  In addition, before the inspection, only the video transmission unit 20 other than the inspection target has the antenna in a function stop state (signal output stop state to the antenna), but only the antenna of the display unit 30 other than the inspection target may be stopped. Then, the antennas of both the video transmission unit 20 and the display unit 30 that are not to be inspected may be in a function stop state. At the time of inspection, the remote controller 80 is used to make the antenna function.

  Further, the microcomputer 75 sends an antenna selection signal to the video processing means 71, and the video processing means 71 symbolizes the information and displays it on the display means 72. FIG. 6 illustrates the display screen. The antenna selection information is displayed as character data, and each character symbol is set as follows.

Item (1): “ANT-TX” can select the antenna of the video transmission unit 20 Options “L” ⇒Specify antenna 26, “R” ⇒Specify antenna 27, “D” ⇒ Either 26 or 27 Is automatically selected.

Item (2): “ANT-RX” can select the antenna of the display unit 30 Options “L” ⇒Specify antenna 41, “R” ⇒Specify antenna 42, “C” ⇒Specify antenna 43, “D” ⇒ Automatically selects one of 41, 42, and 43.

Item (3): “SS-TX” is an on / off switching option of signal output from the microcomputer 67 of the antennas 26 and 27 of the video transmission unit 20 “ON” ⇒ During the input of the antennas 26 and 27 of the video transmission unit 20, “OFF” ⇒ The functions of the antennas 26 and 27 of the video transmission unit 20 are stopped.

  In FIG. 6, since “SS-TX” is “ON”, it is understood that the antennas 26 and 27 of the video transmission unit 20 to be inspected are functioning. Since “ANT-TX” is “L” and “ANT-RX” is “L”, it means that the antenna 26 and the antenna 41 are selected and functioned.

  In the case of “D”, the microcomputers 67 and 75 select the antennas in the preset order. These data are stored in the ROMs 68 and 76, and an antenna is selected according to this data. The microcomputer of the transmission device and the reception device automatically selects the antenna to be functioned, so that the labor of selecting the antenna by the inspection operator can be saved.

  As shown in FIG. 7, the antenna of the video transmission unit 20 that is not the inspection target is in a function stop state, and “SS-TX” is displayed as “OFF” on the screen of the display unit 30 that is paired with the antenna. In this way, since the antenna of the video transmission unit 20 other than the inspection target is put into a function stop state, the display unit 30 as the inspection target does not interfere with radio waves of the video transmission unit 20 other than the inspection target. Therefore, a transmission / reception inspection can be performed without performing a power on / off operation of the transmission unit during the inspection process, and work efficiency is improved.

  In addition, since the setting item SS-TX for switching the function of the RF output of the transmission unit is prepared only for the inspection process, the above switching operation by the user is not easily performed, which may cause an erroneous operation by the user. There is no.

  In addition, the display symbol of an antenna may be not only a character but an icon, and may display by changing a color for every antenna.

  In this way, since the symbol indicating the antenna to be functioned is displayed on the display means, it is possible to easily recognize which antenna is inspected when an operator is performing a transmission / reception inspection in the inspection process. . Furthermore, when the antenna symbol is displayed over the video signal being received, the currently functioning antenna can be identified and confirmed at the same time while confirming the reception state of the wireless communication system.

  Next, a procedure in the inspection (repair) process will be described. In this inspection process, after receiving the above-described simple inspection, the product to be repaired is subjected to precise inspection and adjustment, and those that can be repaired by the adjustment are shipped, and those that need repair are sent to another process.

  FIG. 8 is a flowchart showing a procedure in the inspection (repair) process, and FIG. 9 is an explanatory diagram showing a display screen of the display means.

  First, in the inspection process, the microcomputers 67 and 75 confirm whether or not the repair ID is written (stored) in the ROMs 68 and 76 (step S1). If the repair ID is written, the ID to be used is the repair ID (step S2), and if the repair ID is not written, the ID to be used is the product ID (step S3). After confirming whether the microcomputers 67 and 75 are in the inspection mode (step S4), the inspection (repair) process is performed (step S5). After the repair is completed, the microcomputers 67 and 75 confirm whether or not there is an instruction to delete the repair ID from the operator through the remote controller 80 (step S6). If there is an erase instruction, the repair ID is erased from the ROMs 68 and 76, Change to a product ID (step S7).

  When the inspection mode ends (step S8), the microcomputers 67 and 75 confirm whether the ID is a product ID (step 9). In the repair process, the screen A shown in FIG. 9 is displayed on the display means 72 so far, and the character color is displayed in green, for example. If it is a screen product ID, the screen B shown in FIG. 9 is displayed on the display means 72, and a character color is green (step S10). If it is a repair ID, the screen C shown in FIG. 9 is displayed and the character color is red (step S11).

  In this way, since the repair ID is newly stored in the ROM separately from the product ID, the repair ID can be numbered in order and can be easily managed. In addition, since a repair ID that is clearly different from the product ID is attached, it is possible to prevent a product requiring repair from being shipped accidentally. In particular, since the repair ID can be presented to the operator by displaying it on the screen, it can be easily recognized. Thus, there is an effect that the work efficiency in the inspection process can be improved.

  In this embodiment, the quality of the antenna portion is determined. However, the present invention is not limited to this, and a repair ID is also given in the same manner as described above when repair is required in the inspection process of other parts. And manage.

[Embodiment 2]
A second embodiment of the present invention will be described below with reference to FIGS. 1 to 7, 9, and 10. FIG. Since the radio communication system according to the present embodiment has the same configuration as that of the radio communication system described in the first embodiment, members described in the first embodiment are denoted by the same reference numerals. The description is omitted.

  As in the first embodiment, the wireless communication system according to the present embodiment includes a video transmission unit (transmitting device) 20 and a display unit (receiving device) 30 as shown in FIG. The video transmission unit 20 and the display unit 30 communicate with each other in a wireless manner, and transmit CATV signals and television radio waves from the video transmission unit 20 to the display unit 30.

  Further, as an antenna used for the video transmission unit 20 and the display unit 30, for example, an inverted L-type antenna (FIG. 2A) or an inverted F-type antenna (FIG. 2B) as shown in FIG. 2 is used. be able to. Among these antennas, a method for selecting an antenna to function can be performed in the same manner as in the first embodiment (as shown in FIGS. 6 and 7). Similarly to the first embodiment, the video transmission unit 20 can be configured as shown in FIG. 3, and the display unit 30 can be configured as shown in FIG.

  As shown in FIG. 5, the video transmission unit 20 includes a receiving unit 61, a video processing unit 62, an audio processing unit 63, an encoder 64, a wireless transmission unit 65, a microcomputer 67, a ROM 68, and the like. Are wireless transmission / reception means 79, decoder 70, video processing means (output control means) 71, display means (output means) 72, audio processing means (output control means) 73, speaker (output means) 74, microcomputer (determination means). 75, ROM (storage device) 76, light receiving means 78, and the like.

  The microcomputer 75 has a control function for performing various controls for driving the display unit 30. This control function is realized by a calculation unit (not shown) of the microcomputer 75 executing a program recorded in the ROM 76 or a memory (not shown). The memory (not shown) may be inside the microcomputer 75 or outside the microcomputer 75.

  For example, the microcomputer 75 controls the video processing unit 71 and the audio processing unit 73. The video processing means 71 receives an instruction from the microcomputer 75 and causes the display means 72 to display a predetermined image. The sound processing means 73 outputs a predetermined sound from the speaker 74 in response to an instruction from the microcomputer 75.

  Further, when a predetermined signal is input, the microcomputer 75 reads the ID recorded in the ROM 75 and causes the display means 72 to display the ID. The predetermined signal is, for example, a signal for instructing to perform an inspection (shipment inspection) as to whether or not shipping is possible. The ID is information indicating the state of the video transmission unit 20 and the display unit 30 such as a product ID and a repair ID. The product ID is an ID used when no defective part is found as a result of the inspection of the video transmission unit 20 and the display unit 30. The repair ID is an ID used when a defective part is found as a result of inspection of the video transmission unit 20 and the display unit 30.

  The microcomputer 75 has a function of determining which ID is the ID to be displayed (stored ID). When the microcomputer 75 determines that the stored ID is only the product ID, the microcomputer 75 displays the product ID stored in the display means 72 and displays that no defective part has been found by the inspection. . Specifically, for example, as shown in screen B of FIG. 9, “SETTING COMPLETE” is displayed, and the character string on the screen is displayed in green. On the other hand, when the microcomputer 75 determines that the stored ID is a repair ID, the microcomputer 75 displays the repair ID stored in the display means 72 and indicates that a defective part has been found by inspection (that is, Display that it should not be shipped as a product). Specifically, for example, as shown in the screen C of FIG. 9, “SETTING NG” is displayed, and the character string on the screen is displayed in red.

  The microcomputer 75 determines whether or not the stored ID is a product ID. For example, the product ID includes information unique to the product ID, and the microcomputer 75 includes the ID including the information. This can be done by determining whether or not. Similarly, whether the stored ID is a repair ID is determined by including information unique to the repair ID in the repair ID, and whether the microcomputer 75 is an ID including the information. This can be done by determining. Therefore, it is preferable that the information unique to the product ID and the information unique to the repair ID are information that can be reliably distinguished and not confused. Further, when the product ID and the repair ID are stored in different storage areas, it may be determined whether there is an ID stored in a predetermined storage area.

  In the wireless communication system (video transmission unit 20 and display unit 30) having the above configuration, a finishing process is performed before shipment. The “finishing process” is a general term for a series of processes performed before shipment, such as an inspection process, a repair process, and a shipping inspection. In the present embodiment, an inspection performed before shipment to determine whether there is a defective portion in the video transmission unit 20 or the display unit 30 is referred to as an “inspection process”. In addition, a process related to repair that is performed when a defective portion is found in this inspection process is referred to as a “repair process”. Further, the inspection of whether or not shipment is possible is referred to as “shipment inspection”. That is, the “finishing process” is the same as the generic term for the processes such as “simple inspection”, “inspection process”, and “inspection (repair) process” described in the first embodiment.

  Here, the finishing process will be described with reference to FIG. FIG. 10 is a flowchart for explaining the finishing process in the present embodiment. FIG. 10 illustrates a finishing process in the display unit 30. As shown in FIG. 10, in the finishing process, first, an inspection process is performed in order to check whether or not there is a defective portion in the video transmission unit 20 or the display unit 30. However, in the present embodiment, as the video transmission unit 20 and the display unit 30, devices that communicate with each other wirelessly are used. For this reason, in the video transmission unit 20 and the display unit 30, a recognition ID (recognition information) is stored in advance (before the inspection process) so that mutual wireless communication is possible (S21).

  This ID for recognition is identification information for the video transmission unit 20 and the display unit 30 to recognize each other. The recognition ID is not particularly limited as long as the video transmission unit 20 and the display unit 30 can recognize each other. For example, the identification ID can be represented by information represented by eight hexadecimal digits, that is, 32-bit information. It should be noted that the identification ID stored in the video transmission unit 20 and the identification ID stored in the display unit 30 may all have the same bit information, or only partially match. It may be a thing, and the thing without a matching part may be sufficient. This recognition ID is stored in the ROM 68 by the microcomputer 67 of the video transmission unit 20 and is stored in the ROM 76 by the microcomputer 75 of the display unit 30.

  Then, an inspection process is performed (S22). Various inspections are performed in the inspection process. For example, an inspection regarding the communication performance of the antenna is performed, and this can be performed in the same manner as in the first embodiment. As a result of the inspection, the presence or absence of a defective part is examined (S23). If no defective part is found in the inspection process, the product ID (shippable information) is stored in both the video transmission unit 20 and the display unit 30 (S24). The product ID is unique identification information given to each pair of video unit 20 and display unit 30. The product ID is information for identifying the video transmission unit 20 and the display unit 30 that are paired. In the shipping inspection, the video transmission unit 20 and the display unit 30 have no defective portion and can be shipped. This is information indicating that a state is reached.

  On the other hand, when a defective part is found in the inspection process, the repair ID (repair information) is stored in both the video transmission unit 20 and the display unit 30 (S25). The repair ID is unique identification information given to each of the pair of video transmission units 20 and the display unit 30 that are determined to have a defective part in the inspection process. That is, the repair ID is information for identifying the video transmission unit 20 and the display unit 30 that are paired with each other, and the video transmission unit 20 and the display unit 30 have a defective portion, so that the repair is necessary and is shipped. This is information indicating that it is in an incapable state. The repair ID may be information indicating that the video transmission unit 20 and the display unit 30 cannot be shipped, and is not particularly limited. However, the information is preferably information that can be reliably distinguished from the product ID.

  If no defective portion is found in S23, the same product ID is stored in the video transmission unit 20 and the display unit 30 that are paired. The product ID is stored in the ROM 68 by the microcomputer 67 of the video transmission unit 20 and is stored in the ROM 76 by the microcomputer 75 of the display unit 30. On the other hand, when a defect is found in S23, the same repair ID is stored in the video transmission unit 20 and the display unit 30 that are paired. The repair ID is stored in the ROM 68 by the microcomputer 67 of the video transmission unit 20 and is stored in the ROM 76 by the microcomputer 75 of the display unit 30.

  The product ID is stored in the same area as that storing the recognition ID. That is, the product ID is overwritten in the area where the recognition ID is stored. Therefore, in this case, the recognition ID is deleted. Further, the repair ID is stored in the same area as the area storing the recognition ID. That is, the repair ID is overwritten in the area where the recognition ID is stored. Therefore, also in this case, the recognition ID is deleted.

  Then, the video transmission unit 20 and the display unit 30 in which the defective part is found in the inspection process and the repair ID is stored proceed to the repair process (S26). In the repair process, predetermined repairs are performed on defective portions of the video transmission unit 20 and the display unit 30. The video transmission unit 20 and the display unit 30 that have been repaired are again put into the inspection step (S22).

  If no defective part is found in the inspection process that is input again, the product ID is stored in the video transmission unit 20 and the display unit 30 (S23 to S24). The method for storing the product ID can be performed in the same manner as described above. However, the repair ID is stored in the area where the product ID is stored, and the product ID is stored in this area. Therefore, in this case, the repair ID is deleted.

  The video transmission unit 20 and the display unit 30 in which no defective portion has been found in the above-described inspection process (including the inspection process that has been reintroduced) are subjected to a shipping inspection when a predetermined signal is input (S27 to S27). S28). The predetermined signal is a signal instructing to perform a shipping inspection. When this signal is input, the microcomputers 67 and 75 determine whether or not the ID (used ID) stored in the ROM 68 of the video transmission unit 20 and the ROM 76 of the display unit 30 is a product ID (S29). ). As a result of this determination, if the ID stored in the ROM 68/76 is a product ID, the video processing means 71 causes the display means 72 to display the screen shown in screen B of FIG. 9 (S30). This screen shows that the video transmission unit 20 and the display unit 30 are ready for shipment. In this case, the process proceeds to the shipping process (S31).

  On the other hand, when the video transmission unit 20 and the display unit 30 in which the repair ID is stored for some reason have undergone a shipping inspection, the microcomputers 67 and 75 have the ID stored in the ROM 68 and 76 not the product ID (repair ID). Is determined). In this case, the video processing means 71 displays the screen shown in the screen C of FIG. 9 on the display means 72 (S32). From this screen, it can be seen that the video transmission unit 20 and the display unit 30 cannot be shipped. In this case, since there is a high possibility that the video transmission unit 20 and the display unit 30 have defective portions, these units 20 and 30 are again input to the inspection step (S22). Thereby, it can avoid shipping the video transmission unit 20 and the display unit 30 which need repairing accidentally.

  In the shipping process, the finishing process is completed by performing the shipping procedure for the video transmission unit 20 and the display unit 30.

  In the above process, whether or not the product ID is determined in S29 is not limited to this. For example, it may be determined whether or not the stored ID is a repair ID, and both determination of whether or not it is a repair ID and determination of whether or not it is a product ID may be performed.

  Note that the above-mentioned recognition ID, product ID, and repair ID may be automatically input and stored in the video transmission unit 20 and the display unit 30 as predetermined IDs, or directly input using some input means. Also good.

  In the above-described embodiment, the recognition ID is stored in advance in both the video transmission unit 20 and the display unit 30, but the present invention is not limited to this. For example, the product ID may be stored in advance in both the video transmission unit 20 and the display unit 30 instead of the recognition ID. That is, in this case, the product ID is stored in the video transmission unit 20 and the display unit 30 before the inspection process. If the defective part is not found as a result of the inspection, the stored ID is left as it is. If the defective part is found, the repair ID is stored in the area where the product ID is stored. Further, after the repair process and the inspection process that has been reintroduced, the video transmission unit 20 and the display unit 30 having no defective portion store the product ID in an area where the repair ID is stored.

  In the present embodiment, the product ID and the repair ID are stored in both the video transmission unit 20 and the display unit 30, but the present invention is not limited to this. For example, when the storage area for storing the recognition ID and the storage area for storing the product ID and / or the repair ID are different, the product ID and the repair ID are stored in one ROM of the video transmission unit 20 and the display unit 30. It only has to be memorized.

  That is, if the recognition ID is always stored in the storage area for storing the recognition ID, the video transmission unit 20 and the display unit 30 are in a state where they can recognize each other. For this reason, when the product ID or the repair ID is stored only in the ROM 68 of the video transmission unit 20, the video transmission unit 20 displays the product ID or the repair ID stored in the ROM 68 at the time of shipping inspection on the display unit 30. The display unit 30 may display the received product ID or repair ID. If the product ID or the repair ID is stored only in the ROM 76 of the display unit 30, the microcomputer 75 reads the product ID or the repair ID recorded in the ROM 76 at the time of shipping inspection, and the display means 72 Show it.

  Furthermore, in this embodiment, the repair ID stored when a defective part is found in the inspection process is rewritten to the product ID when the defective part is not found in the inspection process that is input again after the repair process. It is done. That is, in the present embodiment, the mode in which the repair ID is erased has been described.

  However, the present invention is not limited to this, and even if the repair is completed and no defective part is found in the second inspection process, the product ID is stored without erasing the repair ID. May be. This can be realized, for example, by making the storage area for storing the repair ID different from the storage area for storing the product ID.

  In addition, when the storage area for storing the repair ID (repair information storage area) and the storage area for storing the product ID (shipment information storage area) are different, and each ID is stored in each of these storage areas, Of the repair ID and product ID, a storage area (usage information storage area) for storing an actually used ID may be provided. In other words, the ROM 76 has a storage area for storing a repair ID, a storage area for storing a product ID, and a storage area for storing an ID to be used as three different storage areas. By reading and storing either the repair ID or the product ID in the use information storage area for storing the ID to be used, the ID to be used can be easily determined.

  Specifically, if there is no defective part in the inspection process, the product ID is stored in the use information storage area. If a defective part is found in the inspection process, the repair ID is stored in the use information storage area. Remember. When the ID to be used is a product ID, the repair ID may be stored in the repair information storage area. When the ID to be used is the repair ID, the product ID may be stored in the shipping information storage area. Good. The microcomputer 75 determines which ID is the ID stored in the usage information storage area of the ROM 76. As a result, the shipping inspection can be performed even when the repair ID is stored in the repair information storage area and the product ID is stored in the shipping information storage area. That is, even when the repair ID and the product ID are both stored, the shipping inspection can be performed.

  Note that the storage area for storing the repair ID, the storage area for storing the product ID, and the storage area for storing the ID to be used may exist in the same storage device, but each in a different storage device. It may exist, and only one of the storage areas may exist in different storage devices.

  Further, when the repair ID is stored in the area for storing the ID to be used and the product ID is stored in the same area, the area for storing the ID to be used is stored after the repair ID is stored in another storage area. The product ID may be stored in the. Thereby, product ID can be memorize | stored in the state which left repair ID.

  However, if the repair ID and the product ID are stored, the microcomputer 75 may determine that the repair ID is stored and read the repair ID. In this case, it is preferable to store in a storage area that is not used for the determination of the microcomputer 75.

  If the repair IDs are left, these repair IDs can be used as repair history. For example, by including repair history data in the repair ID, it becomes possible to refer to the defective part of the video transmission unit and the display unit, the repair contents, and the like based on the repair ID. Therefore, although the repair ID itself may be left as the repair ID to be left (the repair ID itself may be stored in another storage area), it is recognized as a part of the repair ID or as a history. Only possible information may be left (may be stored in another storage area).

  In the present embodiment, the microcomputer 75 determines whether the ID stored in the storage device such as the ROM 76 is a product ID or a repair ID, and displays the ID to be used based on the determination result. 72 is displayed. However, this invention is not limited to this, For example, the structure which outputs the information regarding ID to be used with the sound via the speaker 74 of the display unit 30 based on the determination result may be sufficient. . As a result, not only visual confirmation but also sound confirmation is possible.

  In the present embodiment, the wireless communication system including the video transmission unit 20 and the display unit 30 has been described as an example. However, the present invention is not limited to this, and for example, the video transmission unit 20 It may be a communication system that communicates with the display unit 30 by wire, or may be an integrated display device in which these units are integrated.

  In a communication system in which the video transmission unit 20 and the display unit 30 communicate with each other by wire, wireless communication is not performed, so that it is not necessary to recognize each other. Therefore, it is not necessary to store the recognition ID, and after the inspection process, if there is no defective portion, the product ID is stored as the ID to be used. If the defective portion is found, the ID is repaired as the ID to be used. It is sufficient to store the ID.

  Also in this case, the product ID and the repair ID may be stored in one ROM 68/76 of the video transmission unit 20 or the display unit 30, or may be stored in both ROMs 68/76. When stored in the ROM 76 of the display unit 30, the microcomputer 75 controls the display unit 72 to display the ID read from the ROM 76. When stored in the ROM 68 of the video transmission unit 20, information about the ID is transmitted from the video transmission unit 20 to the display unit 30, and the display unit 30 displays the received ID on the display unit 72. Yes.

  Further, even in an integrated display device in which the video transmission unit 20 and the display unit 30 are integrated, naturally, a recognition ID is not necessary, and a product ID and a repair ID are stored in one of the ROMs 68 and 76. Just do it. However, since the video transmission unit 20 and the display unit 30 are integrated, it is not necessary to have both the ROM 68 of the video transmission unit 20 and the ROM 76 of the display unit 30, and a ROM is used as the integrated display device. You may have.

  Furthermore, in the present embodiment, the display unit 30 has been described as corresponding to the receiving device in the claims, but the present invention is not limited to this. For example, the video transmission unit 20 may be configured to correspond to the receiving device in the claims. Even in this case, a series of steps before shipment can be performed by the same method as the finishing step described above.

  That is, the microcomputer 67 included in the video transmission unit 20 has the same function as the microcomputer 75 of the display device 30 and performs the same control. The ROM 68 stores IDs such as product IDs and repair IDs. In this case, the microcomputer 67 reads and outputs the ID recorded in the ROM 68 when a predetermined signal such as a signal for instructing the shipment inspection is input.

  As described above, when a predetermined signal is input, the microcomputer 68 determines which ID is the ID to be output (stored ID), and outputs the ID based on the determination result. It has become. This determination can be performed in the same manner as the determination by the microcomputer 75 of the display unit 30. Also, the ID can be output in the same manner as described above. For example, the ID to be output may be transmitted to the display unit 30 and displayed on the display means 72 of the display unit 30, or may be output as a sound from the speaker 74. Furthermore, the video transmission unit 20 itself may be provided with display means, speakers, etc., and output from these display means or speakers.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  Finally, each block of the display unit 30, in particular, the microcomputer 75 may be configured by hardware logic, or may be realized by software using a CPU as follows.

  That is, the display unit 30 includes a CPU (central processing unit) that executes instructions of a control program that realizes each function, a ROM (read only memory) that stores the program, a RAM (random access memory) that expands the program, A storage device (recording medium) such as a memory for storing the program and various data is provided. An object of the present invention is to provide a recording medium in which a program code (execution format program, intermediate code program, source program) of a control program for the display unit 30 which is software for realizing the above-described functions is recorded in a computer-readable manner This can also be achieved by supplying the display unit 30 and reading and executing the program code recorded on the recording medium by the computer (or CPU or MPU).

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. Card system such as IC card, IC card (including memory card) / optical card, or semiconductor memory system such as mask ROM / EPROM / EEPROM / flash ROM.

  The display unit 30 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Further, the transmission medium constituting the communication network is not particularly limited. For example, even in the case of wired such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL line, etc., infrared rays such as IrDA and remote control, Bluetooth ( (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  As described above, the receiving device of the present invention can determine whether or not the device itself is in a repaired state in a shipping inspection, and therefore can avoid shipping in a repaired state. Therefore, the present invention can be particularly suitably used for electronic / electrical devices that can output information indicating that the television is repaired, such as a TV, a PDA, or a personal computer.

1 is a configuration diagram illustrating an embodiment of a wireless communication system according to the present invention. It is a perspective view which shows the structure of an antenna. It is an exploded view which shows an example of a video transmission unit. It is a built-in figure which shows an example of a display unit. 1 is a block diagram showing a wireless communication system according to the present invention. It is explanatory drawing which shows the display screen of the display unit in an inspection process. It is a time chart which shows the function of the antenna of the video transmission unit in an inspection process. It is a flowchart which shows the procedure in a test | inspection (repair) process. It is explanatory drawing which shows the display screen of a display means. It is a flowchart which shows the procedure of the finishing process in other embodiment of this invention.

Explanation of symbols

10. Wireless communication system (communication system)
20 Video transmission unit (transmission device)
25 Wireless communication transmitter 26, 27 Antenna 28, 29 Cable 30 Display unit (receiver)
31 Display screen section 32 Speaker storage section 41, 42, 43 Antenna 44, 45 Speaker 46 Wireless communication receiving section 50 Reverse L antenna 51 Reverse F antenna 62, 71 Video processing means (output control means)
65, 79 Wireless transmission / reception means 67, 75 Microcomputer (determination means)
68,76 ROM (storage device)
69, 78 Light receiving means 72 Display means (output means)
80 remote control

Claims (20)

It is information given when a defect is found in the own device in the inspection process, and information different from the information given to another device in which a defect is found in the inspection process is used as repair information.
Determination means for determining whether the repair information is stored in a storage device when a predetermined signal is input;
A receiving apparatus comprising: output control means for outputting the repair information from the output means when it is determined that repair information is stored in the storage device. If the identification information indicating that the device is in a shippable state is the shippable information,
The determination means further determines whether or not the shippable information is stored in a storage device,
The receiving apparatus according to claim 1, wherein the output control unit outputs the shippable information from the output unit when the determining unit determines that the shippable information is stored in the storage device.   The receiving apparatus according to claim 2, wherein a storage area for storing the repair information and a storage area for storing shippable information are the same storage area. Information that is given when a defect is found in the own device in the inspection process and that is different from the information given to another device in which a defect is found in the inspection step is used as repair information. If the identification information indicating that is available for shipping
Determination means for determining whether the information stored in the storage device is the repair information or the shippable information when a predetermined signal is input;
A receiving apparatus comprising: output control means for outputting information stored in the storage device from the output means based on the determination result. The storage device includes a repair information storage area for storing repair information, a shipping information storage area for storing shippable information, and a use information storage area for storing information to be used among the repair information and the shippable information. Have
The receiving apparatus according to claim 4, wherein the determination unit determines whether the information stored in the use information storage area is the repair information or the shippable information. The receiving device according to any one of claims 1 to 5,
A communication system comprising: a transmission device communicably connected to the reception device. Repair information and / or shipping information is stored in the transmission device,
When the predetermined signal is input, the transmission device transmits the repair information and / or shippable information to the reception device, and the reception device stores the received repair information and / or shippable information in the storage device. The communication system according to claim 6.   The communication system according to claim 6 or 7, wherein a communication method between the transmission device and the reception device is wireless communication. When the identification information for the transmission device and the reception device to recognize each other is recognition information,
The communication system according to claim 8, wherein recognition information is stored in each of the transmission device and the reception device. In a wireless communication system comprising a transmitter and the receiver,
Comprising a selection means capable of selecting whether or not to function each antenna of the transmitting device and the receiving device during the inspection process;
The transmitting device and the receiving device are repair numbers different from the product numbers given to the transmitting device and the receiving device when a defect is found in the inspection process, and the defect is found in the inspection process. A wireless communication system comprising storage means for newly storing a repair number different from a repair number assigned to another transmitting device and receiving device .   11. The product number and repair number stored in the storage means have recognition information for recognizing that the transmitting device and the receiving device making a pair form a pair. The wireless communication system according to 1.   12. The wireless communication system according to claim 11, wherein the recognition information includes the same product number and repair number stored in the storage unit of the transmitting device and the receiving device that form a pair.   The wireless communication system according to any one of claims 10 to 12, wherein the transmission device or the reception device includes a presentation unit indicating that the storage unit stores a repair number.   The wireless communication system according to claim 13, wherein the presenting unit is a display unit. It is information given when a defect is found in the own device in the inspection process, and information different from the information given to another device in which a defect is found in the inspection process is used as repair information.
When a predetermined signal is input, determine whether the repair information is stored in a storage device,
An information output method comprising: outputting repair information from output means when it is determined that repair information is stored in the storage device. If the identification information indicating that the device is in a shippable state is the shippable information,
When a predetermined signal is input, it is further determined whether or not the shippable information is stored in a storage device,
16. The information output method according to claim 15, wherein, when it is determined that only the shippable information is stored in the storage device, the shippable information is output from the output unit. Information that is given when a defect is found in the own device in the inspection process and that is different from the information given to another device in which a defect is found in the inspection step is used as repair information. If the identification information indicating that is available for shipping
When a predetermined signal is input, it is determined whether the information stored in the storage device is the repair information or the shippable information;
An information output method comprising: outputting information stored in a storage device from an output unit based on the determination result. The storage device includes a repair information storage area for storing repair information, a shipping information storage area for storing shippable information, and a use information storage area for storing information to be used among the repair information and the shippable information. Have
Determine whether the information stored in the use information storage area is the repair information or the shippable information;
18. The information output method according to claim 17, wherein information stored in the usage information storage area is output from an output unit based on the determination result.   A program for causing a computer to realize each means included in the receiving device according to any one of claims 1 to 5.   A computer-readable recording medium on which the program according to claim 19 is recorded.