Electronic still camera with indicator for number of tracks available for video and/or audio recording

• US 4,746,993 A
• Filed: 05/21/1986
• Issued: 05/24/1988
• Est. Priority Date: 05/31/1985
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Tada, Kanehiro
• Primary Examiner(s): Richardson, Robert L.
• Application Number:
  US06/865,283
• Time in Patent Office: 734 Days
• Field of Search: 358/335, 358/906, 358/909, 369/53, 360/55, 360/137, 369/58
• US Class Current: 386/225
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: G11B 31/006 with video camera or receiver
• CPC Class Codes: G11B 33/10 Indicating arrangements; Warning arrangements G11B15/04, G11B19/04, G11B27/34, G11B27/36 take precedence
• CPC Class Codes: G11B 5/012 Recording on, or reproducing or erasing from, magnetic disks G11B17/00, G11B19/00 take precedence
• CPC Class Codes: H04N 1/2112 using still video cameras
• CPC Class Codes: H04N 1/2125 Display of information relating to the still picture recording
• CPC Class Codes: H04N 2101/00 Still video cameras
• CPC Class Codes: H04N 2201/214 Checking or indicating the storage space
• CPC Class Codes: H04N 2201/3264 of sound signals
• CPC Class Codes: Y10S 358/906 Hand-held camera with recorder in a single unit

Abstract

A solid-state still camera includes a detector for detecting how much track space is already occupied and producing a detector signal for every occupied track. A counter counts the detector signals and produces a counter signal representative of the number of occupied tracks. The solid-state still camera is also provided with a manually operable mode selector for selecting video recording mode from among a plurality of different modes, such as frame mode and field mode. An arithmetic circuit is associated with the counter to receive the counter signals therefrom. The arithmetic circuit is also connected to the mode selector to receive a selected mode indicative signal. The arithmetic circuit derives the number of pictures that can be taken based on the counter signal value and the selected mode indicative signal. The value derived by the arithmetic circuit is displayed on a visual display. Preferably, the solid-state still camera also includes an audio recording feature. The detector also detects the tracks occupied by recording audio signals. The indicator makes it possible to conveniently know the number of blank tracks available for taking pictures or recording audio sounds.

Claims

1. An electronic still camera comprising:

an image pick-up means for picking up video data;

a data recording means, including a recording medium having a given number of recording areas, each adequate for storing one field of video data, for recording said video data picked up by said image pick-up means;

a detector means for detecting the number of said recording areas already storing video data and producing a detector signal representative of the number of already recorded recording areas; and

an indicator means for visually displaying data concerning the use and availability of space on said recording medium.

2. An electronic still camera as set forth in claim 1, wherein said indicator means displays the number of recording areas available for recording video data.

3. An electronic still camera as set forth in claim 1, wherein said indicator means displays the number of recording areas already occupied and thus displays the number of recording areas available for recording.

4. An electronic still camera as set forth in claim 1, wherein said image pick-up means and said data recording medium are operable in various resolution modes and are associated with a resolution mode selector means for switching among operating modes.

5. An electronic still camera as set forth in claim 4, wherein said resolution mode selector means can select at least between a normal resolution mode and a higher resolution mode, in which normal resolution mode one recording area is occupied per one shot of video recording, and in which higher resolution mode more than one recording areas are occupied per one shot of video recording.

6. An electronic still camera as set forth in claim 5, wherein said indicator includes a resolution mode indicator for indicating the selected mode.

7. An electronic still camera as set forth in claim 6, wherein said detector means is associated with said resolution mode selector means for deriving said number of already recorded recording areas based on number of shots already taken and the selected resolution mode at each shot.

8. An electronic still camera as set forth in claim 1, which also comprises an audio recording means for receiving audio data, which audio recording means is associated with said data recording means for recording audio data in said recording area of said recording medium, and said audio recording means allows a given period of audio recording per each audio recording operation.

9. An electronic still camera as set forth in claim 8, which also comprises a mode selector means for selectively operating said image pick-up means and said audio recording means.

10. An electronic still camera as set forth in claim 9, wherein said detector means is associated with said recording mode selector means for deriving said number of recording areas already recorded based on the selected one of video recording and audio recording mode.

11. An electronic still camera as set forth in claim 10, wherein said audio recording means is associated with an audio recording time setting means for performing audio recording for said given period of time varies with the audio recording time set by means of said audio recording time setting means.

12. An electronic still camera as set forth in claim 11, wherein said audio recording time setting means can be set to at least in a first time corresponding to one unit of time for recording a single recording area of said recording medium and a second time corresponding to more than one unit of time.

13. An electronic still camera as set forth in claim 12, wherein said image pick-up means and said data recording medium are operable in various resolution modes and are associated with a resolution mode selector means for switching among operating modes.

14. An electronic still camera as set forth in claim 13, wherein said resolution mode selector means can select at least between a normal resolution mode and a higher resolution mode, in which normal resolution mode one recording area is occupied per one shot of video recording, and in which higher resolution mode more than one recording areas are occupied per one shot of video recording.

15. An electronic still camera as set forth in claim 14, wherein said indicator includes a resolution mode indicator for indicating the selected mode.

16. An electronic still camera as set forth in claim 15, wherein said indicator includes a recording mode indicator for indicating selected one of image pick-up mode and audio recording mode.

17. An electronic still camera as set forth in claim 16, wherein said indicator also includes a set time indicator for indicating the set audio recording time.

18. An electronic still camera as set forth in claim 17, wherein said recording mode selector switch can select both image pick-up mode and audio recording mode wherein first said image pick-up means performs video data recording and subsequently said audio recording means performs audio data recording.

19. An electronic still camera as set forth in claim 18, wherein when said both recording modes are selected, said audio recording means is activated a predetermined delay time after said image pick-up means terminates the video data recording operation.

20. An electronic still camera as set forth in claim 17, wherein said indicator also includes an analog indicator consisting of a plurality of indicator segments adapted to be turned off and on one-by-one to indicate already recorded recording areas and empty recording areas, respectively.

21. An electronic still camera as set forth in claim 20, wherein said recording medium comprises a magnetic disk having a given number of recording tracks, each of which tracks serves as one of the said recording areas.

22. An electronic still camera as set forth in claim 21, which is associated with a remote controller for controlling operation of said electronic still camera.

23. An electronic still camera as set forth in claim 22, wherein said remote controller has a display displaying said availability data displayed on said indicator of said electronic still camera.