Data recording apparatus and camera

Abstract

A data recording apparatus includes: a data recording device that records acquired data in a recording medium; a target data specifying device that specifies target data to which data processing is to be performed out of data recorded in the recording medium based on an instruction by a user; a recordable data number calculation device that calculates a number of the acquired data that will be able to be recorded in the recording medium by performing the data processing to the target data based on a remaining capacity of the recording medium and a content of processing of the data processing; a display control device that displays on a display device a result of the calculation by the recordable data number calculation device before the data processing is performed.

1 . A data recording apparatus comprising:
 a data recording device that records acquired data in a recording medium;   a target data specifying device that specifies a target data to which data processing is to be performed out of data recorded in the recording medium based on an instruction by a user;   a recordable data number calculation device that calculates a number of the acquired data that will be able to be recorded in the recording medium by performing the data processing to the target data based on a remaining capacity of the recording medium and a content of processing of the data processing; and   a display control device that displays on a display device a result of the calculation by the recordable data number calculation device before the data processing is performed.   
     
     
         2 . A data recording apparatus according to  claim 1 , wherein:
 the data processing includes data deletion processing in which the target data is deleted from the recording medium.   
     
     
         3 . A data recording apparatus according to  claim 1 , wherein:
 the data processing includes data creating processing in which new data is created based on the target data and recorded in the recording medium.   
     
     
         4 . A data recording apparatus according to  claim 2 , wherein:
 the data processing further includes data creating processing in which new data is created based on the target data and recorded in the recording medium.   
     
     
         5 . A data recording apparatus according to  claim 2 , wherein:
 the data recording device performs processing to the acquired data such that a data size (acquired data size) of the acquired data matches a data size that corresponds to preset data acquisition conditions and records the resultant data in the recording medium;   the target data specifying device specifies deletion target data to be deleted out of the data recorded in the recording medium based on an instruction by the user;   the data recording apparatus further comprises   a data size acquisition device that acquires data size (deleted data size) of the deletion target data specified by the deletion target data specifying device;   the recordable data number calculation device calculates a number of the acquired data that will be able to be recorded in the recording medium by deletion of the deletion target data based on a remaining capacity of the recording medium, the deleted data size; and   the acquired data size, and the display control device displays a result of the calculation by the recordable data number calculation device on the display device before the data deletion processing is performed.   
     
     
         6 . A data recording apparatus according to  claim 5 , further comprising:
 a data acquisition condition setting device that sets data acquisition conditions for acquiring the acquired data, wherein:   the recordable data number calculation device calculates the recordable data number for each of the data acquisition conditions set by the data acquisition condition setting device; and   the display control device displays on the display device a result of the calculation by the recordable data number calculation device.   
     
     
         7 . A data recording apparatus according to  claim 6 , wherein:
 when one of the recordable data numbers for respective data acquisition conditions displayed on the display device by the display control device is selected by the user, the data acquisition condition setting device deletes the deletion target data from the recording medium and sets data acquisition conditions corresponding to the recordable data number selected by the user as data acquisition conditions of the data recording device.   
     
     
         8 . A data recording apparatus according to  claim 5 , wherein:
 the deletion target data specifying device specifies a plurality of deletion target data to be deleted out of the data recorded in the recording medium based on an instruction by the user;   the recordable data number calculation device calculates the recordable data number of the data that will be able to be recorded in the recording medium by deletion of the deletion target data based on a remaining capacity of the recording medium, the data sizes of the plurality of deletion target data, and the acquired data size; and   the display control device displays a result of the calculation by the recordable data number calculation device on the monitor device.   
     
     
         9 . A data recording apparatus according to  claim 5 , wherein:
 the display control device displays on the display device a number of the acquired data that can be recorded in the recording medium before the deletion target data is deleted along with the result of the calculation by the recordable data number calculation device.   
     
     
         10 . A data recording apparatus according to  claim 3 , wherein:
 the recordable data number calculation device calculates a number of recordable data that will be able to be recorded in the recording medium after the new data is recorded based on a remaining capacity of the recording medium and a data size of the new data to be created by the data creation processing; and   the display control device displays on the display device a result of the calculation by the recordable data number calculation device before the data creation processing is performed.   
     
     
         11 . A data recording apparatus according to  claim 10 , wherein:
 the data creation processing creates a plurality of new data based on the target data;   the recordable data number calculation device calculates the recordable data number of data that will be able to be recorded in the recording medium after the plurality of new data is recorded therein based on the remaining capacity of the recording medium and the data sizes of the plurality of new data to be created by the data creation processing; and   the display control device displays on the display device a result of the calculation by the recordable data number calculation device.   
     
     
         12 . A data recording apparatus according to  claim 10 , wherein:
 the display control device displays on the display device a number of the acquired data that can be recorded in the recording medium before the data creation processing is performed along with the result of the calculation by the recordable data number calculation device.   
     
     
         13 . A camera comprising:
 a data recording apparatus according to  claim 5 ; and   an image data acquisition device that captures an image of a subject to acquire image data, wherein:   the data recording device performs processing to data acquired by the image data acquisition device such that a data size thereof matches a data size that corresponds to preset data acquisition conditions and records the resultant data in the recording medium as the acquired data.   
     
     
         14 . A camera comprising:
 a data recording apparatus according to  claim 10 ; and   an image data acquisition device that captures an image of a subject to acquire image data, wherein:   the data recording device records image data acquired by the image data acquisition device in the recording medium as the acquired data; and   by the data creation processing, predetermined image processing is performed on the target data to create new image data as the new data and records it in the recording medium.