JP2009140595A - Recording and playback apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording and playback apparatus that estimates temperature at which equipment becomes unusable and efficiently performs temperature adjustment in the vicinity of limit temperature at which equipment can be used. <P>SOLUTION: The recording and playback apparatus includes a temperature sensor 31 for measuring the temperature of an HDD 30, and a temperature sensor 34 for measuring use environment temperature, the use environment temperature is measured, temperature of the HDD is estimated, and temperature of the HDD can be efficiently controlled. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a recording / reproducing apparatus and can be suitably used particularly for a DVD (Digital Versatile Disc) video camera and an HDD (Hard Disk Drive) video camera.

  In recent years, devices using a disk such as a DVD or a hard disk drive (hereinafter referred to as HDD) as a medium having a small size and a large capacity for recording digital data such as video and audio have been put into practical use. Compared with video tapes, these disk devices can be easily accessed by random access or can be edited, have excellent operability, and have been widely used.

  Conventionally, a camera-integrated VTR in which a video camera and a VTR (Video Tape Recorder) are integrated is widely spread and used indoors and outdoors. In recent years, a recording / reproducing apparatus using a DVD or HDD as a recording medium has also appeared on the market.

  Incidentally, it is known that the recording performance of the HDD is lowered at a low temperature. As a recording / reproducing apparatus including an HDD, a portable device such as an HDD video camera is assumed to be used outdoors. There is a good chance that it will be used in cold places such as ski records and in cold weather. Such a decrease in recording performance at low temperatures is regarded as a problem.

  Therefore, conventionally, for example, a temperature sensor is provided in the HDD, and a recording operation is not performed below a predetermined temperature.

  For example, for a predetermined temperature range set as a recordable temperature, the recording operation is disabled when the temperature is lower than the lower limit value of the temperature, and the recording operation is permitted only when the temperature is equal to or higher than the lower limit value of the temperature. It is intended to prevent data destruction due to such a recording operation at a low temperature.

When it is detected that the temperature is below the lower limit of the set temperature range (low temperature), a method of controlling the temperature of the HDD by installing an additional heater as a method of avoiding the low temperature state of the HDD, or a simple heating method As such, there is a method in which the HDD is heated by utilizing the heat generated by the motor by rotating the media of the HDD. (For example, refer to Patent Document 1.)
JP 2006-202462 A

  However, in the conventional configuration, when the HDD temperature falls below a predetermined temperature, the HDD operation is stopped and the HDD is heated, but the outside air temperature (use environment temperature) is reduced. In this case, the temperature of the HDD does not always rise immediately. Further, when the use environment temperature is sufficiently low, there is a possibility that even if the HDD is heated, it does not rise to a temperature at which the HDD can be used.

  For this reason, depending on the change in the use environment temperature, there is a problem that the battery is consumed wastefully by heating.

  Further, since access to the HDD is prohibited below a predetermined temperature, for example, an HDD video camera restricts the original use of recording moving image data on the HDD. Even during recording, if the temperature falls below a predetermined temperature, access to the HDD is limited, and it is not possible to capture the desired video. The user will not be able to shoot when he wants to record.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a recording / reproducing apparatus having a function of efficiently controlling the temperature of the HDD.

In order to solve the conventional problems, a recording / reproducing apparatus according to the present invention is a recording / reproducing apparatus for recording / reproducing a signal on a disk-shaped recording medium. A temperature measuring unit 1 for measuring, a temperature measuring unit 2 for measuring a use environment temperature of the recording / reproducing apparatus, and a temperature control unit for controlling the temperature of the recording medium, wherein the control unit includes the temperature measuring unit 1 and The measurement results acquired from the temperature measuring means 2 are compared, it is determined whether or not a temperature change of the recording / reproducing means occurs based on the comparison results, and the temperature control means is controlled based on the determination results. It is what.

  The recording / reproducing apparatus of the present invention is characterized in that the temperature control means controls the temperature by rotating the recording medium.

  The recording / reproducing apparatus of the present invention is characterized in that the temperature control means controls the temperature by writing a signal on the disk.

  The recording / reproducing apparatus of the present invention is characterized by having at least one temperature control means.

Further, the recording / reproducing apparatus of the present invention is characterized in that the control unit selects a temperature control means in accordance with an operation state of the recording / reproducing apparatus.
The recording / reproducing apparatus of the present invention is characterized in that the control unit selects a temperature control means in accordance with the type of the recording / reproducing apparatus.

  The recording / reproducing apparatus of the present invention further includes a display unit, and displays the result on the display unit based on the determination result of the temperature comparison control process.

  As described above, according to the recording / reproducing apparatus of the present invention, it is possible to predict whether the temperature of the HDD is lowered or increased by comparing the use environment temperature and the temperature of the HDD. At the time of power activation, an optimum temperature control method can be selected according to the difference between the use environment temperature and the HDD temperature. Compared with the prior art, it is possible to reduce power consumption caused by temperature control.

  In addition, if it is in use, it can be controlled according to the operation status of the recording / reproducing apparatus (recording, stopped, etc.). Since it may be lowered, it is possible to heat by the temperature control method before that. Further, since it is possible to notify the user to that effect, it is possible to predict a recording interruption due to a temperature drop.

Embodiments of the recording / reproducing apparatus of the present invention will be described below in detail with reference to the drawings.
(Embodiment)
FIG. 1 is a block diagram showing an internal configuration example of a recording / reproducing apparatus 1 in the embodiment of the present invention.

  The recording / reproducing apparatus 1 of the embodiment is configured to include an HDD 30 as shown in the figure. Then, image data is recorded and reproduced on the HDD 30 incorporated in this way.

  In FIG. 1, first, a subject image captured from an imaging lens 11 is imaged on a light receiving plane of an image element 12 that is a CCD sensor, and is converted into an electric signal by the brightness of the image light. Further, the converted electrical signal is converted into a digital signal by an analog-digital (A / D) conversion unit 13 and input to the camera signal processing unit 14. The output from the camera signal processing unit 14 is converted into image data, and is input and displayed on a display unit 18 such as a liquid crystal panel (hereinafter, LCD).

  At the time of recording, the image data output from the camera signal processing unit 14 is compressed by the image compression / decompression processing unit 16 by a known compression method such as MPEG standard for moving images and JPEG standard for still images. The Under the main control unit 20, the compressed data is recorded on the recording medium of the HDD 30 via the recording medium controller 23. Here, the image data can also be recorded in the semiconductor memory 24. As the semiconductor memory 24, a removable semiconductor memory such as an SD memory card can be used. Further, an optical disk may be used instead of the HDD 30.

  The CPU included in the main control unit 20 controls the entire recording / reproducing apparatus 1 and performs arithmetic processing based on the activated program. For example, a user input operation from the operation input unit 17 and storage of image data in the HDD 30 as described above are performed.

  The ROM 21 stores an operation program of the CPU included in the main control unit 20, a program loader, various calculation coefficients, parameters used in the program, and the like. Later, a control program for executing the processing operation shown as the embodiment is stored. In addition, this control program can be stored in the HDD 30.

  The HDD 30 has a built-in temperature sensor 1 (31) as shown in FIG. The temperature sensor 1 (31) in this case is built in to perform internal processing of the HDD 30. In this case, the HDD 30 includes a CPU therein and executes various necessary processes internally. In the case of this embodiment, the main controller 20 reads out information on the temperature value detected by the temperature sensor 1 (31) built in the HDD 30 from the HDD 30 side by inputting a predetermined command. It is possible. In general, it is known that the HDD 30 is vulnerable to vibration. Therefore, the HDD 30 is covered with a gel material. Further, the HDD 30 is hermetically sealed inside the recording / reproducing apparatus 1 because it is vulnerable to condensation due to changes in humidity.

  Image data is buffered in the buffer RAM 15 during recording and reproduction. For example, at the time of recording, the image data output from the video signal processing unit 14 is buffered as image data compressed by the image compression / decompression unit 16 and recorded in the HDD 30. At the time of reproduction, the image data read from the HDD 30 is buffered, processed by the image compression / decompression unit 16 and displayed on the display unit 18.

  The operation input unit 17 is an input device provided on the surface of the housing of the recording / reproducing apparatus 1, and the user inputs various operations and inputs data. The operation input unit 17 includes a mode dial for changing the recording mode and the playback mode, a menu button for displaying a menu for changing various settings, and a recording button for starting recording. For example, information input from the operation input unit 17 by the user is transmitted to the main control unit 20 such as pressing a recording button to start recording, and necessary calculations and control are executed according to the transmitted information. To do.

  The display unit 18 is a display such as an LCD, for example, which displays a camera image being shot in a recording state, and plays back recorded data in a playback state. In addition, various information displays for displaying a recording state, a setting state, and the like, and a warning display are performed.

  The external interface 19 is provided for performing data communication with an external device such as a USB interface or an IEEE1394 interface. For example, various types of data are transmitted and received such as connecting to a personal computer and copying recorded data from the recording / reproducing apparatus 1 to the personal computer.

  The battery 41 is a battery that is removable or built in the recording / reproducing apparatus 1, and supplies power to the recording / reproducing apparatus 1 via the power supply unit 40. In FIG. 1, although it is the structure corresponding only to a battery, it can input also from commercial AC power supply.

  By the way, as described above, when recording / reproducing is performed on the HDD 30 as a recording medium like the recording / reproducing apparatus 1 of the embodiment shown in FIG. Widely known. For this reason, in the recording / reproducing apparatus 1 equipped with the HDD 30, if the recording operation is executed at a low temperature, there is a possibility of data destruction.

  Conventionally, as a method of preventing data destruction due to recording at a low temperature, the temperature of the HDD 30 is measured by the temperature sensor 1 (31), and if the measured temperature is equal to or lower than a predetermined use limit temperature Th, a recording operation is performed. Is canceled or prohibited. Further, in order to increase the temperature of the HDD 30, the temperature control unit 1 (32) that drives the temperature by rotating the medium of the HDD 30 is driven. In addition, the temperature control unit 2 (33) that increases the temperature by driving the dummy signal to the HDD is driven. Here, the use limit temperature Th is set to 0 degrees. If the temperature rises until the use limit temperature Th is exceeded by the heating, it can be used.

  In the conventional method, when the use environment temperature tends to decrease, even if the temperature control means is driven, whether or not the use limit temperature Th is reached depends on the use environment temperature and does not return to the use limit temperature. Or, it takes time to warm up the HDD 30, and power consumption is wasted.

  Therefore, in the embodiment of the present invention, it is assumed that the following operations are performed so as to prevent waste of power consumption and improve the usability of the user.

  The processing flow of the recording / reproducing apparatus 1 of the present invention will be described with reference to the flowchart of FIG. The temperature sensor 2 (34) is provided in the recording / reproducing apparatus 1 so that the use environment temperature Tout can be measured. Next, as described with reference to FIG. 1, the HDD 30 is provided with the temperature sensor 1 (31). In the embodiment of the present invention, first, the temperature value Thdd detected from the temperature sensor 1 (31) and the temperature value Tout detected from the temperature sensor 2 (35) are measured (step S201).

  Next, step 202 is a step of determining the operating status of the recording / reproducing apparatus 1. It is assumed that the operation status is in a state of starting, recording, or stopping (others). For example, the influence of heat received on the HDD 30 may change depending on the power-on state, the recording state, and the stopped state. For example, assuming that the operating environment temperature is constant and the recording / reproducing apparatus 1 is turned off and left for a certain period of time, the temperature of the HDD 30 should be substantially the same as the operating environment temperature. In addition, when the power of the recording / reproducing apparatus 1 is turned on, it is assumed that the temperature of the HDD 30 is slightly higher than the use environment temperature due to the influence of heat generated by electronic circuits other than the HDD 30. Further, during recording, the HDD 30 has already been rotated and the temperature control means 1 cannot control the temperature. For the above reasons, it is more efficient to perform temperature control by classifying into operating conditions.

  Step 203 is a type confirmation step. For example, there are several models with different product specifications in digital video cameras. Even if it is released at the same time, there are several types of models, such as a 1CCD model, a 3CCD model, a model excluding the semiconductor memory unit. It is considered that the temperature affecting the HDD 30 varies between the 3CCD model and the 1CCD model. In addition, even if the programs are different depending on the type such as the compile option, the programs related to the temperature control unit may be common. For the above reason, it is more efficient to control the temperature according to the model. In step S203, the actually operating model of the recording / reproducing apparatus 1 is confirmed. In the embodiment of the present invention, there are two types of 1CCD model and 3CCD model. In the embodiment of the present invention, information is acquired in step 203. For example, information that does not change during use, such as 1CCD and 3CCD, can be acquired once during startup. For example, it is not always necessary to acquire model information every time.

  In step S204, a temperature comparison control process is executed. FIG. 3 is a table showing the contents of the temperature comparison control process when the recording / reproducing apparatus 1 is activated. FIG. 4 is a table showing the contents of the temperature comparison control process when the recording / reproducing apparatus 1 is stopped. FIG. 5 is a table showing the contents of the temperature comparison control process being recorded by the temperature control apparatus 1. FIG. 6 is a flowchart of the startup case of FIG. In practice, the temperature comparison control means is selected because the temperature change experienced by the HDD 30 varies depending on the model, exterior, and circuit configuration of the recording / reproducing apparatus 1. Will be determined.

  First, the temperature comparison control process at the time of starting will be described based on the flowchart of FIG. Here, for the sake of explanation, it is assumed that when the operation status of step S202 in FIG. 2 is activated, 1 CCD is selected as the type of step S203. As for the temperature, the use environment temperature Tout is -2 degrees, and the temperature of the HDD 30 is -9 degrees.

  First, in step S701, the use environment temperature Tout is confirmed. Here, since the use environment temperature Tout is set to −2 degrees, the process proceeds to step S721. In step S721, the temperature Thdd of the HDD 30 is confirmed. Here, since it is -9 degrees, it progresses to Step S725. In step S725, it is confirmed whether it is 1 CCD or 3 CCD. Here, since one CCD is selected, the HDD cannot be used in step S728, and the temperature control means 2 is driven in step S729.

  The recording / reproducing apparatus 1 of the present invention periodically performs a series of processes shown in FIG. Therefore, after the start-up, the temperature control is performed based on the table of the temperature comparison control process during the stop shown in FIG. FIG. 7 is a flowchart of the correspondence table of the temperature comparison control process during the stop of FIG. Here, the processing is executed every 30 seconds.

  Further, after 30 seconds, temperature measurement, operation status, and model acquisition are performed. Here, the measured temperature is -2 degrees for the use environment temperature Tout, and the temperature of the HDD 30 is -4 degrees, assuming that the temperature is increased by driving the temperature control means 2 after startup. Further, the operation status is in a stopped state.

  First, in step S801, the use environment temperature Tout is confirmed. Here, since the use environment temperature Tout is set to −2 degrees, the process proceeds to step S821. In step S821, the temperature Thdd of the HDD 30 is confirmed. Here, since it is −4 degrees, the process proceeds to step S832. In step S832, if necessary, the HDD cannot be used. In step S824, the temperature control unit 1 is driven.

  Further, after 30 seconds, temperature measurement, operation status, and model acquisition are performed in the same manner. Here, the measured temperature is -2 degrees for the use environment temperature Tout, and 3 degrees for the temperature Thdd of the HDD 30 assuming that the temperature is increased by driving the temperature control means 1 after startup.

  First, in step S801, the use environment temperature Tout is confirmed. Here, since the use environment temperature Tout is set to −2 degrees, the process proceeds to step S821. In step S821, the temperature Thdd of the HDD 30 is confirmed. Here, since it is 3 degrees, it progresses to step S822. Here, the HDD 30 can be used, and recording / reproduction can be performed on the HDD 30. Further, if there is no change in the use environment temperature Tout and the temperature Thdd of the HDD 30, the state is continued.

  Up to this point, an example in which the use environment temperature Tout is constant at −2 degrees and the temperature Thdd of the HDD 30 increases is shown. Next, a case where the use environment temperature Tout changes will be described.

  Let us consider a case where the HDD temperature Thdd becomes 3 degrees at the use environment temperature Tout-9 degrees. First, in step S801, the use environment temperature Tout is confirmed. Here, since the use environment temperature Tout is set to −9 degrees, the process proceeds to step S831. In step S831, the temperature Thdd of the HDD 30 is confirmed. Here, since it is 3 degrees, it progresses to step S832. Here, the HDD is in a usable state. In step S833, a warning message indicating that the temperature has decreased is displayed on the display unit 18. Then, the user can recognize that the use environment temperature is too low.

  Further, let us consider a case where the use environment temperature Tout is -11 degrees and the HDD temperature Thdd is -1 degrees.

  First, in step S801, the use environment temperature Tout is confirmed. Here, since the use environment temperature Tout is set to -11 degrees, the process proceeds to step S841. In step S841, the temperature Thdd of the HDD 30 is confirmed. Here, since it is set to -1 degree, it progresses to step S844. Here, since the HDD 30 has fallen below the use limit temperature Th, the HDD 30 cannot be used.

  Although the case where it can be used if it heats is considered, since use environment temperature Tout is lower than -10 degree | times, possibility that it will exceed use limit temperature Th is low even if it heats. Here, since the temperature is periodically acquired, the temperature control means operates when the ambient temperature changes and reaches a temperature that is considered to have a heating effect. Power consumption can be reduced without unnecessary heating.

  Next, an example of the temperature comparison control process during recording will be described. FIG. 8 is a flowchart of the temperature comparison control processing correspondence table during recording in FIG. Here, it is assumed that the operating environment temperature Tout is 1 degree and the temperature Thdd of the HDD 30 is 3 degrees and recording is in progress.

  First, in step S901, the use environment temperature Tout is confirmed. Here, since the use environment temperature Tout is set to 1 degree, the process proceeds to step S911. Here, since the temperature Thdd of the HDD 30 is 3 degrees, it indicates a state in which recording is continued in step S912. Here, it is assumed that the use environment temperature has changed to −6 degrees.

  First, in S901, the use environment temperature Tout is confirmed. Here, since the use environment temperature Tout is -6 degrees, the process proceeds to step S931. Here, since the temperature Thdd of the HDD 30 is 3 degrees, in step S932, a warning message indicating that the outside air temperature has changed is displayed to the user while recording continues. Furthermore, the temperature control means 2 is executed. The temperature control means 2 here writes a dummy signal, but during recording, intermittent recording is performed in which data is stored in the buffer RAM 15 and the HDD 30 is written in a certain unit. For this reason, the HDD 30 is not performing a write operation while recording data is stored in the buffer RAM 15. Therefore, a dummy signal is recorded while the HDD 30 is not writing for heating so that the temperature Thdd of the HDD 30 is not lowered as much as possible.

  Here, the dummy signal is recorded in an area called a manufacturer management area so as not to reduce the area recorded by the user. In general, in a disk recording medium such as an HDD, a normal recording / reproducing area where a user records and reproduces data is separate from the normal recording / reproducing area, and a manufacturer management area where data can be recorded / reproduced in the same manner. Exists. Here, the dummy signal is written in the manufacturer management area.

  Furthermore, if the use environment temperature Tout becomes -9 degrees and the temperature of the HDD 30 becomes -1 degrees, the process proceeds from step S901 to S931, and the HDD 30 is disabled in step S935.

  If the temperature falls below the use limit temperature Th during recording, the HDD 30 has fallen below the use limit temperature Th even though it has been sufficiently heated by the recording. There is a possibility that the HDD 30 cannot be used even if it is heated until the temperature exceeds the use limit temperature Th. If the recording stops during recording, the temperature is periodically acquired, but the use of the HDD 30 is prohibited for a certain period, here, until the usage environment temperature Tout> 0. When the use environment temperature Tout exceeds 0 degrees, the temperature comparison control means in the stopped state is used to warm the HDD 30 and bring it closer to the environment in which the HDD 30 can be used.

  As described above, in the embodiment, the temperature sensor 35 that measures the use environment temperature Tout is used, the use environment temperature is measured, and compared with the temperature Thdd of the HDD 30, whether the temperature of the HDD 30 increases or decreases. It is possible to predict whether the direction is to be performed, and an appropriate temperature control means can be selected, leading to a reduction in power consumption.

  In addition, by notifying the user of changes in the use environment temperature, the user can change the shooting location or change the use environment.

  The temperature comparison control process is periodically performed at regular time intervals, and even after the HDD cannot be used, the temperature is periodically measured. Therefore, the HDD can be used again when the HDD temperature Thdd is restored. Even when the temperature control means is being executed, the use environment temperature Tout may change. Therefore, it is preferable to execute the temperature control means periodically so that the state can be changed. You may perform this at the time of starting of HDD30 and before access.

  Further, the recording / reproducing apparatus 1 of the present invention does not limit the operation of the semiconductor memory 24 even when the HDD 30 is in an unusable state, and may be recorded in the semiconductor memory.

  As the temperature sensor 31, the temperature sensor built in the HDD 30 is used, but it may be set outside the HDD 30.

  In the embodiment of the present invention, the temperature control unit 1 rotates the medium of the HDD 30 and the temperature control unit 2 performs the write operation to increase the temperature. However, this is not necessarily required. There is no problem even if the temperature of the HDD is controlled from the outside by using, for example, a heater.

  In the embodiment of the present invention, the temperature control means has been described with two types of temperature control means, but one type or two or more types of temperature control means may be used.

  In the embodiment of the present invention, the temperature setting is divided into four sections and the operation state is divided into three, that is, start, record, and stop, but may be further classified. Further, the comparison determination process may be configured using information of the temperature difference ΔT = Tout−Thdd. Moreover, although the case of low temperature was taken as an example, the same can be done at high temperature.

  Further, the temperature measuring means in the present invention is not particularly limited as long as it is a means for detecting an element indicating a temperature change, even if it is not a temperature sensor as in the embodiment of the present invention.

  In the embodiment of the present invention, the HDD is taken as an example of the recording / reproducing means.

  In the temperature control means 2, the dummy signal is recorded in the maker management area, but it may be recorded in the normal recording / reproducing area.

  The recording / reproducing apparatus according to the present invention has a function of reducing the power consumption by predicting the temperature of the built-in HDD and efficiently selecting the temperature control means. This is useful as a temperature control when recording restrictions are required at high temperatures.

The block diagram of the recording / reproducing apparatus in embodiment of this invention Flowchart of recording / reproducing apparatus in an embodiment of the present invention The figure which shows the processing content of the temperature comparison control process in the starting state of the recording / reproducing apparatus in embodiment of this invention The figure which shows the processing content of the temperature comparison control process in the stop state of the recording / reproducing apparatus in embodiment of this invention The figure which shows the processing content of the temperature comparison control process in the recording state of the recording / reproducing apparatus in embodiment of this invention Flowchart of temperature comparison control process in the activated state of the recording / reproducing apparatus in the embodiment of the present invention Flowchart of temperature comparison control process in stop state of recording / reproducing apparatus in the embodiment of the present invention Flowchart of temperature comparison control processing in the recording state of the recording / reproducing apparatus in the embodiment of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Recording / reproducing apparatus 11 Lens 12 CCD sensor (imaging element)
13 Analog-Digital Conversion Unit 14 Camera Signal Processing Circuit 15 Buffer RAM
16 Image compression / decompression processing unit 17 Operation input unit 18 Liquid crystal panel (display unit)
19 External connection interface 20 Main controller 21 ROM
22 RAM
23 Recording Media Controller 24 Semiconductor Memory 30 Hard Disk Drive (HDD)
31 Temperature Sensor 32 Temperature Control Unit 1
33 Temperature control unit 2
34 Temperature Sensor 40 Power Supply Unit 41 Battery

Claims (7)

In a recording / reproducing apparatus for recording / reproducing a signal on a disc-shaped recording medium,
A control unit for controlling the entire device;
Temperature measuring means 1 for measuring the temperature of the recording / reproducing apparatus;
Temperature measuring means 2 for measuring the use environment temperature of the recording / reproducing apparatus,
Temperature control means for controlling the temperature of the recording medium,
The control unit compares the measurement results obtained from the temperature measurement unit 1 and the temperature measurement unit 2, determines whether or not a temperature change of the recording / reproducing unit occurs based on the comparison result, and determines the determination result. A recording / reproducing apparatus characterized by controlling temperature control means based on the above. The recording / reproducing apparatus according to claim 1,
The recording / reproducing apparatus, wherein the temperature control means controls the temperature by rotating the recording medium. The recording / reproducing apparatus according to claim 1,
The recording / reproducing apparatus characterized in that the temperature control means controls the temperature by writing a signal on the disk. 4. A recording / reproducing apparatus according to claim 1, further comprising at least one temperature control means. The recording / reproducing apparatus according to claim 4.
The controller is
A recording / reproducing apparatus, wherein a temperature control means is selected according to an operating state of the recording / reproducing apparatus. The recording / reproducing apparatus according to claim 1,
The recording / reproducing apparatus, wherein the control unit selects temperature control means according to a model of the recording / reproducing apparatus. The recording / reproducing apparatus according to claim 1,
Furthermore, it has a display part,
A recording / reproducing apparatus, wherein the result is displayed on the display unit based on a determination result of the temperature comparison control process.