Video system

• US 4,499,504 A
• Filed: 03/23/1982
• Issued: 02/12/1985
• Est. Priority Date: 03/31/1981
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Maeda, Masaya, Edakubo, Hiroo
• Primary Examiner(s): RICHARDSON, ROBERT
• Application Number:
  US06/361,041
• Time in Patent Office: 1,057 Days
• Field of Search: 358/209, 358/213, 358/335, 358/906, 358/229
• US Class Current: 386/358
• CPC Class Codes: G11B 31/006 with video camera or receiver
• CPC Class Codes: Y10S 358/906 Hand-held camera with recorder in a single unit

Abstract

A video system including a video camera which has an image signal recording system for recording on a recording medium the image signal obtained from a photo-electric conversion means and a reproducing device which contains a driving mechanism for driving the medium in the video camera.

Claims

1. A device used solely for recording image pick-up video signals, comprising:

image pick-up means to convert an object image into electrical signals;

recording means to record on a long sized recording medium such video signals corresponding to said electrical signals;

a transporting mechanism to transport said long sized recording medium;

a main motor to produce a first driving power for transporting the recording medium at a first speed by the transporting mechanism;

receiving means to mechanically receive a second driving power from an external auxiliary motor provided separately from said device to produce a second driving power for transporting the recording medium at a second speed which is faster than the first speed by the transporting mechanism; and

a transmission mechanism to transmit the second driving power received by said receiving means to the transporting means.

2. A device according to claim 1, which further comprises an opening for receiving the second driving power with the receiving means.

3. A device according to claim 2, which further comprises a cover member to cover said opening.

4. A device according to claim 3, in which said cover member is a grip to hold the device solely used for recording.

5. A device according to claim 1, in which the long sized recording medium is a magnetic tape and the recording means is a magnetic field.

6. A video system comprising:

(a) a device solely used for recording image pick-up video signals, including;

image pick-up means to convert an object image into electrical signals;

a magnetic head to record on a magnetic tape such video signals corresponding to said electrical signals and to reproduce the video signals recorded on the magnetic tape;

a transporting mechanism to transport the magnetic tape;

a main motor to produce a first driving power for transporting the magnetic tape at a first speed by the transporting mechanism;

clutch means to mechanically receive external driving power for actuating the transporting mechanism with external driving power; and

(b) an external driving power producing device, including;

an auxiliary motor to produce a second driving power for transporting the magnetic tape at a speed faster than the first speed by the transporting mechanism; and

a driving power transmission mechanism to transport the second driving power of the auxiliary motor mechanically to the clutch means.

7. A device according to claim 6, in which the device solely used for recording further comprises an opening for exposing the clutch means.

8. A device according to claim 7, in which the device solely used for recording further comprises a cover member to cover said opening.

9. A device according to claim 8, in which said cover member is a grip to hold the device solely used for recording.

10. A device according to claim 6, in which the transporting mechanism has a capstan roller to transport the magnetic tape at a constant speed, a supply reel to supply the magnetic tape and a take-up reel to take up the magnetic tape.

11. A device according to claim 10, in which the main motor drives the capstan roller and the take-up reel out of the capstan roller and said reels, while the auxiliary motor drives at least the supply reel and the take-up reel.

12. A device solely used for recording image pick-up video signals, comprising:

image pick-up means to convert an object image into electrical signals;

recording means to record on a long sized recording medium such video signals corresponding to said electrical signals;

a supply and take-up mechanism for a recording medium including a supply reel stand to supply the long sized recording medium to the recording means and a take-up reel stand to take up the recording medium;

a capstan to feed the recording medium at a constant speed;

a motor to provide driving power for the capstan; and

a supply and take-up driving mechanism to provide the driving power of the motor for the supply and take-up mechanism;

wherein the supply and take-up driving mechanism gives the driving power of the motor only to the take-up reel stand of said supply and take-up reel stands.

13. A device according to claim 12, in which the long sized recording medium is a magnetic tape and the recording means is a magnetic head.

14. A camera having a recording system built therein, in which said recording system records image pick-up video signals on a magnetic tape housed in a tape cassette, comprising:

an image pick-up lens;

image pick-up means to convert an optical image obtained through said image pick-up lens into electrical signals;

a drum which contains a magnetic head to record such video signals corresponding to the electrical signals and to which the tape comes in contact;

a tape supply and take-up mechanism including a supply reel stand to supply the magnetic tape to the magnetic head and a take-up reel stand to take up the magnetic tape;

a capstan to feed the magnetic tape at a constant speed; and

a transporting driving mechanism to give the driving power simultaneously to the capstan and the supply and take-up mechanism;

wherein the transporting driving mechanism gives the driving power of the motor of the motor only to the take-up reel stand of said supply and take-up reel stands.

15. A device according to claim 14, in which the image pick-up means is a solid image pick-up element.