Image data recording system including memory card

• US 5,200,863 A
• Filed: 02/12/1992
• Issued: 04/06/1993
• Est. Priority Date: 04/30/1987
• Status: Expired due to Term

• Current Assignee: Casio Computer Company Limited
• Original Assignee: Casio Computer Company Limited
• Inventors: Orii, Masaharu
• Primary Examiner(s): Sniezek, Andrew L.
• Assistant Examiner(s): KAPADIA, VARSHA A
• Application Number:
  US07/835,105
• Time in Patent Office: 419 Days
• Field of Search: 360/35.1, 360/33.1, 358/310, 358/335, 358/906, 358/909
• US Class Current: 386/200
• CPC Class Codes: H04N 1/2112 using still video cameras
• CPC Class Codes: H04N 1/2158 using a detachable storage unit
• CPC Class Codes: H04N 2101/00 Still video cameras
• CPC Class Codes: H04N 2201/0077 Types of the still picture apparatus
• CPC Class Codes: H04N 5/77 between a recording apparatus and a television camera
• CPC Class Codes: H04N 9/804 involving pulse code modulation of the colour picture signal components
• CPC Class Codes: H04N 9/81 the individual colour picture signal components being recorded sequentially only

Abstract

An electronic video data recording system includes a camera apparatus for photoelectric-converting an incident optical image into electronic image data; a memory card detachably mounted on the camera apparatus and containing a random access memory to store the electronic image data; and a video tape recorder or other outside storage device for recording the image data which have been previously stored in the random access memory of the detachable memory card, the image data being supplied from the memory card through the camera apparatus. When taking the image, the detachable memory card is mounted on the camera apparatus so as to store the image data into the random access memory thereof. When the image data stored in the detachable memory card are recorded, they are transferred from the memory card into the video tape recorder, via the camera apparatus. The detachable memory card can then be re-used.

Claims

1. A video data recording system, comprising:

housing means;

optical means arranged at least partly in said housing means for forming an optical image on a predetermined plane in said housing means;

image data processing means arranged in said housing means for receiving said optical image as a still image and for producing electronic image data representative of said still image;

buffer memory means coupled to said image data processing means for storing the electronic image data derived from said image data processing means;

detachable memory means detachably mounted to said housing means and electrically coupled to said buffer memory means when mounted to said housing means, for storing a limited number of independent electronic image data which are supplied from said buffer memory means;

output terminal means arranged on said housing means and coupled for outputting said electronic image data derived from said detachable memory means via said buffer memory means when said detachable memory means is mounted to said housing means;

write control means arranged in said housing means for controlling a writing operation of said electronic image data supplied from said buffer memory means into said detachable memory means when said detachable memory means is mounted to said housing means;

read-out control means arranged in said housing means for controlling a reading out operation of said electronic image data to said output terminal means via said buffer memory means when said detachable memory means is mounted to said housing means;

said read-out control means including;

transfer means for repeatedly transferring to said output terminal means, said electronic image data representative of one of the still images stored in said detachable memory means via said buffer memory means, such that said electronic image data representative of said one still image is repeatedly transferred to said output terminal means a plurality of times over a given time period;

transfer time sensing means for sensing whether or not said given time period during which said electronic image data of said one still image is repeatedly transferred by said transfer means, corresponds to a predetermined time period; and

transfer control means for stopping the electronic image data transfer of said electronic image data of said one still image by said transfer means responsive to said given time period during which said transfer means repeatedly transfers said electronic image data of a same still image exceeding said predetermined time period; and

peripheral memory means outside of said housing means and detachably coupled to said output terminal means and capable of storing a large number of independent image data, for storing said repeatedly transferred electronic image data, corresponding to a plurality of a same still image, output from said output terminal means, said large number being substantially greater than said limited number;

said peripheral memory means including reproducing means for continuously and sequentially reproducing said same electronic image data of said same still image stored in said peripheral memory means, whereby each said same still image stored in said peripheral memory means is sequentially reproduced for such predetermined time period.

2. A video data recording system as claimed in claim 1, wherein said image data processing means further includes:

image sensing means for producing electronic signals in response to said optical image;

video signal producing means for producing a video signal based on said electronic signals produced by said image sensing means; and

analog-to-digital converting means for converting said video signal produced by said video signal producing means into digital electronic image data which corresponds to said received optical image.

3. A video data recording system as claimed in claim 2, wherein said detachable memory means comprises a memory card containing at least one semiconductor memory chip.

4. A video data recording system as claimed in claim 1, wherein said detachable memory means comprises a detachable semiconductor memory means.

5. A video data recording system as claimed in claim 1, wherein said image data processing means includes:

image sensing means for producing electronic signals in response to said optical image; and

analog-to-digital converting means for converting said electronic signals produced by said image sensing means into digital electronic image data which corresponds to said received optical image.

6. A video data recording system as claimed in claim 5, wherein said detachable memory means comprises a memory card containing at least one semiconductor memory chip.

7. A video data recording system as claimed in claim 5, wherein said detachable memory means comprises a detachable semiconductor memory means.

8. A video data recording system as claimed in claim 5, further comprising:

video signal producing means coupled to said detachable memory means when said detachable memory means is mounted to said housing means, and also coupled to said output terminal means, for producing a video signal based on said digital electronic image data output from said detachable memory means and for outputting said video signal to said output terminal means.

9. A video data recording system as claimed in claim 5, wherein:

said detachable memory means stores said digital electronic image data output from said analog-to-digital converting means; and

said video data recording system further comprises;

digital-to-analog converting means, coupled to said detachable memory means, for converting said digital electronic image data read out from said detachable memory means into a corresponding analog electronic image signal; and

output control means, for supplying to said output terminal means, one of said digital electronic image data output from said detachable memory means and said analog electronic image signal produced by said digital-to-analog converting means.

10. A video data recording system as claimed in claim 1, wherein said transfer means comprises:

one-frame memory means for storing said electronic image data representative of one still image previously recorded on said detachable memory means; and

address designating means for repeatedly and sequentially designating an address of said one-frame memory means.

11. A video data recording system as claimed in claim 1, further comprising:

synchronizing signal generating means, arranged in said housing means, for generating a synchronizing signal; and

synchronizing signal output means for outputting a predetermined number of said synchronizing signals generated by said synchronizing signal generating means to said output terminal means.

12. A video data recording system as claimed in claim 11, wherein said synchronizing signal is a vertical synchronizing signal of a video signal.

13. A video data recording system as claimed in claim 12, wherein said means for controlling said reading out operation includes means for commencing the read out operation of said electronic image data from said detachable memory means after a predetermined number of said synchronizing signals are output from said output terminal means.

14. A video data recording system as claimed in claim 1, wherein said peripheral memory means comprises a magnetic tape recorder means.

15. A video data recording system as claimed in claim 14, wherein said magnetic tape recorder means comprises a digital video tape recorder means.

16. A video data recording system as claimed in claim 1, wherein said display means comprises a liquid crystal television means, mounted on said housing means, for displaying an image in response to said electronic image data output from said detachable memory means.

17. A video data recording system as claimed in claim 1, wherein said detachable memory means comprises a detachable semiconductor memory card.

18. A video data recording system as claimed in claim 1, wherein said memory card is maintained in a fixed stationary position in said housing means.

19. A camera apparatus capable of coupling to a peripheral memory means for storing a large number of independent image data supplied from an output terminal means of the camera apparatus, comprising:

housing means;

optical means arranged at least partly in said housing means for forming an optical image on a predetermined plane in said housing means;

image data processing means arranged in said housing means for receiving said optical image as a still image and for producing electronic image data representative of said still image;

buffer memory means coupled to said image data processing means for storing the electronic image data derived from said image data processing means;

detachable memory means detachably mounted to said housing means and electrically coupled to said buffer memory means when mounted to said housing means, for storing a limited number of independent electronic image data which are supplied from said frame memory means, said limited number being substantially smaller than said large number;

output terminal means arranged on said housing means and coupled for outputting said electronic image data derived from said detachable memory means via said buffer memory means when said detachable memory means is mounted to said housing means;

write control means arranged in housing means for controlling a writing operation of said electronic image data supplied from said buffer memory means into said detachable memory means when said detachable memory means is mounted to said housing means; and

read-out control means arranged in housing means for controlling a reading out operation of said electronic image data to said output terminal means via said buffer memory means when said detachable memory means is mounted to said housing means;

said read-out control means including;

transfer means for repeatedly transferring to said output terminal means, said electronic image data representative of one of the still images stored in said detachable memory means via said buffer memory means, such that said electronic image data representative of said one still image is repeatedly transferred to said output terminal means a plurality of times over a given time period;

transfer time sensing means for sensing whether or not said given time period during which said electronic image data of said one still image is repeatedly transferred by said transfer means, corresponds to a predetermined time period; and

transfer control means for stopping the electronic image data transfer of said electronic image data of said one still image by said transfer means responsive to said given time period during which said transfer means repeatedly transfers said electronic image data of a same still image exceeding said predetermined time period.

20. A camera apparatus as claimed in claim 19, wherein said image data processing means includes:

image sensing means arranged on said predetermined plane in said housing means, for producing electronic signals in response to said optical image;

video signal producing means for producing a video signal based on said electronic signals produced by said image sensing means; and

an along-to-digital converting means for converting said video signal produced by said video signal producing means into digital electronic image data which corresponds to said optical image.

21. A camera apparatus as claimed in claim 20, wherein said detachable memory means comprises a memory card containing at least one semiconductor memory chip.

22. A camera apparatus as claimed in claim 19, wherein said detachable memory means comprises a detachable semiconductor memory means.

23. A camera apparatus as claimed in claim 19, wherein said image data processing means includes:

image sensing means arranged on said predetermined plane in said housing means for producing electronic signals in response to said optical image; and

analog-to-digital converting means for converting said electronic signals produced by said image sensing means into digital electronic image data which corresponds to said optical image.

24. A camera apparatus as claimed in claim 23, wherein said detachable memory means comprises a memory card containing at least one semiconductor memory chip.

25. A camera apparatus as claimed in claim 23, further comprising:

video signal producing means coupled to said detachable memory means when said detachable memory means is mounted to said housing means, and also coupled to said output terminal means, for producing a video signal based on said digital electronic image data output from said detachable memory jeans and for outputting said video signal to said output terminal means.

26. A camera apparatus as claimed in claim 23, wherein said detachable memory means stores said digital electronic image data output from said analog-to-digital converting means;

and

said camera apparatus further comprises;

digital-to-analog converting means coupled to said detachable memory means for converting said digital electronic image data read out from said detachable memory means into a corresponding analog electronic image signal; and

analog output terminal means coupled to said digital-to-analog converting means for outputting said analog electronic image signal produced by said digital-to-analog converting means.

27. A video data recording system as claimed in claim 19, wherein said detachable memory means comprises a detachable semiconductor memory card.

28. A video data recording system as claimed in claim 27, wherein said memory card is maintained in a fixed stationary position in said housing means.

29. A method of recording and storing image data in a video data recording system, wherein the video data recording system comprises housing means;

optical means at least partly in said housing means for forming an optical image on a predetermined plane in said housing means;

image data processing means arranged in said housing means for receiving said optical image as a still image and for producing electronic image data representative of said still image;

buffer memory means for storing the electronic image data derived from said image data processing means and output terminal means for outputting said electronic image data;

the method comprising;

detachable mounting a detachable memory means capable of storing a limited number of independent electronic image data to said housing means and electrically coupling said detachable memory means to said buffer memory means when said detachable memory means is mounted to said housing image data via said buffer memory means;

controlling a writing operation of said electronic image data supplied from said buffer memory means into said detachable memory means when said detachable memory means is mounted to said housing means;

repeatedly transferring to said output terminal means, said electronic image data representative of one of the still images stored in said detachable memory means, such that said electronic image data representative of said one still image is repeatedly transferred to said output terminal means a plurality of times over a given time period;

sensing whether or not said given time period during which said electronic image data of said one still image is repeatedly transferred, corresponds to a predetermined time period;

stopping the image data transfer of said electronic image data of said one still image responsive to said given time period during which said electronic image data is repeatedly transferred exceeding said predetermined time period;

detachably coupling a peripherally memory means capable of storing a large number of independent image data, located outside of said housing means, to said output terminal means for storing said repeatedly transferred electronic image data, corresponding to a plurality of a same still image, output from said output terminal means, said large number being substantially greater than said limited number; and

continuously and sequentially reproducing said same electronic image data of said same still image stored in said peripheral memory means, whereby each said same still image stored in said peripheral memory means is sequentially reproduced for said predetermined time period.

30. The method of claim 29;

wherein said image data processing means further includes image sensing means for producing electronic signals in response to said optical image;

the method further comprising;

producing a video signal based on said electronic signals produced by said image sensing means; and

analog-to-digital converting said produced video signals into digital electronic image data which corresponds to said received optical image.

31. The method of claim 29, wherein said image data processing means includes image sensing means for producing electronic signals in response to said optical image;

the method further comprising;

analog-to-digital converting said electronic signals produced by said image sensing means into digital electronic image data which corresponds to said received optical image.

32. The method of claim 29, wherein said image data processing means produces digital electronic image data in response to said optical image, said digital electronic image data being stored in said detachable memory means.

33. The method of claim 32, further comprising:

digital-to-analog converting said digital electronic image data read out from said detachable memory means into a corresponding analog electronic image signal; and

supplying to said output terminal means, one of said digital electronic image data output from said detachable memory means and said corresponding analog electronic image signal.

34. The method of claim 29, wherein said electronic image data is digital electronic image data.

35. The method of claim 34, wherein said step of repeatedly transferring comprises:

storing, in a one-frame memory means, said digital electronic image data representative of one still image previously stored in said detachable memory means; and

repeatedly and sequentially designating an address of said one-frame memory means.

36. The method of claim 29, further comprising:

generating synchronizing signals in said housing means; and

outputting a predetermined number of said synchronizing signals to said output terminal means.

37. The method of claim 36, wherein said synchronizing signals are vertical synchronizing signals of a video signal.

38. A video data recording system, comprising:

housing means;

optical means arranged at least partly in said housing means for forming an optical image on a predetermined plane in said housing means;

image data processing means arranged in said housing means for receiving said optical image as still image and for producing electronic image data representative of said still image;

buffer memory means coupled to said image data processing means for storing the electronic image data derived from said image data processing means;

detachable memory means mounted to said housing means and electrically coupled to said buffer memory means when mounted to said housing means, for storing a limited number of independent electronic image data which are supplied from said buffer memory means;

output terminal means arranged on said housing means and coupled for outputting said electronic image data derived from said detachable memory means when said detachable memory means is mounted to said housing means;

control means arranged in said housing means for controlling a writing operation and reading operation of said electronic image data to and from said detachable memory means; and

video data storage means provided outside of said housing means and coupled to said output terminal means, for storing a large number of independent image data representative of still images;

said control means including transferring means for repeatedly transferring to said output terminal means for a predetermined time period, said electronic image data representative of one of the still images stored in said detachable memory means; and

said video data storage means including means for storing said repeatedly transferred electronic image data, corresponding to a plurality of same still image from said output terminal means and means for continuously and sequentially reproducing said same electronic image data of said same still image stored in said video storage means, whereby each said same still image stored in said video storage means is sequentially reproduced for the predetermined time period.

39. The video data recording system according to claim 38, wherein said detachable memory means comprises a detachable semiconductor memory means.

40. The video data recording system according to claim 38, wherein said video data storage means comprises a magnetic tape recorder.

41. A video data recording system, comprising:

still image data storing means for storing a limited number of electronic image data each representing an independent still image;

video data storage means for storing a large number of electronic image data each representing an independent still image; and

control means coupled to said still image data storing means and to said video data storage means for repeatedly transferring one of said limited number of electronic image data stored in said still image data storing means to said video data storage means for a predetermined time period, and for causing said video data storage means to store said repeatedly transferred electronic image data, such that said repeatedly transferred electronic image data stored in said video data storage means will be used for reproducing as a still image for the predetermined time period;

said still image data storing means comprising a still camera apparatus, said still camera apparatus including;

optical means for forming an optical image on a predetermined plane in a showing of said camera apparatus;

image data processing means for receiving said optical image as a still image and for producing electronic image data representative of said still image;

buffer means coupled to said image data processing means for storing the electronic image data derived from said image data processing means;

detachable memory means mounted to said housing and electrically coupled to said buffer means when mounted to said housing, for storing a limited number of independent electronic image data which are supplied from said buffer means;

output terminal means arranged on said housing and coupled to an interface for outputting said electronic image data derived from said detachable memory means via said interface when said detachable memory means is mounted to said housing; and

said control means including a control device arranged in said housing for controlling a writing operation and a reading operation of said electronic image data to and from said detachable memory means and said control device including means for repeatedly transferring to said output terminal means for a predetermined time period, said electronic image data representative of one of the still images stored in said detachable memory means.

42. The video data recording system according to claim 41, wherein said still image data storing means includes detachable memory means for storing a limited number of the electronic image data and capable of being mounted to a housing of the video data recording system so as to electrically coupled to said control means and to said video data storage means.

43. The video data recording system according to claim 42, wherein said detachable memory means includes a detachable semiconductor memory means.

44. The video data recording system according to claim 41, wherein said video data storage means comprises a magnetic tape recorder.

45. The video data recording system according to claim 41, wherein said detachable memory means includes a detachable semiconductor memory means.

46. The video data recording system according to claim 41, wherein said video data storage means includes means for storing said repeatedly transferred electronic image data, corresponding to a plurality of same still image from said output terminal means and means for continuously and sequentially reproducing said same electronic image data of said same still image stored in said video storage means is sequentially reproduced for the predetermined time period.

47. The video data recording system according to claim 46, wherein said video data storage means comprises a magnetic tape recorder.