Reusable camera system which authenticates a refill station

• US 6,238,033 B1
• Filed: 07/10/1998
• Issued: 05/29/2001
• Est. Priority Date: 12/12/1997
• Status: Expired due to Term

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Silverbrook Research Pty Limited
• Inventors: Silverbrook, Kia
• Primary Examiner(s): Barlow, John
• Assistant Examiner(s): Do, An H.
• Application Number:
  US09/112,810
• Time in Patent Office: 1,054 Days
• Field of Search: 347/85, 347/86, 347/19, 347/237, 347/2, 348/207, 396/6
• US Class Current: 347/2
• CPC Class Codes: B41J 11/70 cutting perpendicular to the direction of paper feed
• CPC Class Codes: B41J 15/04 Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
• CPC Class Codes: B41J 2/16585 for paper-width or non-reciprocating print heads
• CPC Class Codes: B41J 2/17596 Ink pumps, ink valves
• CPC Class Codes: B41J 3/36 for portability , i.e. hand-held printers or laptop printers B41J3/4075 takes precedence
• CPC Class Codes: B41J 3/445 Printers integrated in other types of apparatus, e.g. printers integrated in cameras

Abstract

A system for authentication of the refill of a camera system having an internal ink supply and print media for the printing out of images sensed by the camera system, the system comprising: refill means for providing a supply of the ink and print media to the camera system; communication connection means within the camera system adapted to interconnect with a corresponding communication connection means within the refill station; a camera system interrogation means stored internally to the camera system and adapted to utilize the communication connection means to interrogate the refill station so as to determine the authenticity there of. The camera system interrogation means can be created on a silicon chip integrated circuit stored within the camera system, with the camera system interrogation means being created on the same silicon chip as an image sensor for sensing images by the camera system. The communication connection means can be a JTAG interface of the chip.

Claims

1. A system for authentication of the refilling of a recyclable, one-time use, instant printing digital camera which has an internal ink supply and print media for the printing out of images sensed by said camera, said system comprising:

a communications connector within said camera for connection to a corresponding communications link of a refill station during replenishment of ink of the ink supply and print media of the camera effected at said refill station; and

an interrogation means stored in said camera and connected to said connector to interrogate the refill station during replenishment of the ink and print media so as to determine the authenticity of the refill station.

2. A system as claimed in claim 1 wherein said interrogation means forms part of a processing chip of said camera.

3. A system as claimed in claim 2 wherein said chip is an image capture and processing chip of said camera for sensing images.

4. A system as claimed in claim 1 wherein said communications connector comprises a JTAG interface of said chip which is engaged by said link of the refill station during replenishment of the ink by the refill station.

5. A system as claimed in claim 1 wherein said interrogation means comprises a protocol stored in a secure memory of said chip and wherein said memory includes a conductive metal plane for inhibiting unauthorised attempts to read said memory.

6. A system as claimed in claim 5 wherein said secure memory comprises a flash memory.

7. A system as claimed in claim 1 in which a “

prints remaining”

indicator of the camera is controlled by said interrogation means and, upon a determination of the authenticity of said refill station, said interrogation means resets said indicator.