System for upgrading functionality of a peripheral device utilizing a removable ROM having relocatable object code

• US 6,078,967 A
• Filed: 02/25/1998
• Issued: 06/20/2000
• Est. Priority Date: 02/25/1998
• Status: Expired due to Fees

• Current Assignee: Hewlett-Packard Company (HP Inc.)
• Original Assignee: Hewlett-Packard Company (HP Inc.)
• Inventors: Fulghum, Patrick W.
• Primary Examiner(s): Lee, Thomas C.
• Assistant Examiner(s): ELAMIN, ABDELMONIEM I
• Application Number:
  US09/030,665
• Time in Patent Office: 846 Days
• Field of Search: 710/1, 710/2, 711/115, 713/2, 375/220, 375/222, 235/375, 335/375
• US Class Current: 710/2
• CPC Class Codes: G06F 8/54 Link editing before load time
• CPC Class Codes: G06F 8/65 Updates security arrangements therefor G06F21/57

Abstract

An apparatus is disclosed for extending functionality to a peripheral. The apparatus included a peripheral device having a processor, a dedicated storage device containing an enabling algorithm comprising a program code, and a receiver adapted to receive a removable storage device. An embedded operating system of the apparatus is associated with the peripheral device. The apparatus includes a removable storage device containing code. The code is indicative of extended functionality comprising extended features enabled via the embedded operating system. The receiver is configured to receive the code from the removable storage device which is operatively associated with extending functionality to the peripheral device. A method according to the apparatus is also disclosed.

Claims

1. An apparatus for extending functionality to a peripheral, comprising:

a peripheral device having a processor, a dedicated storage device containing an enabling algorithm comprising a program code, and a receiver;

an embedded operating system associated with the peripheral device; and

a removable Read Only Memory (ROM) having relocatable object code for providing extended functionality to the peripheral device in association with the embedded operating system;

wherein the receiver is adapted to receive the ROM and the enabling algorithm program code is configured to enable the relocatable object code for use by the peripheral device such that a functionality of the peripheral device is operatively extended.

2. The apparatus of claim 1 wherein the receiver comprises a SIMM socket.

3. The apparatus of claim 1 wherein the peripheral device comprises a printer.

4. The apparatus of claim 1 wherein the embedded operating system comprises VxWorks.

5. The apparatus of claim 1 wherein the removable ROM comprises a ROM SIMM.

6. The apparatus of claim 1 further comprising Random Access Memory (RAM).

7. The apparatus of claim 1 wherein the enabling algorithm comprises program code and data.

8. A system for configuring functionality within a peripheral, comprising:

an I/O interface for receiving input commands;

a peripheral device having a processor and a dedicated storage device configured to perform mechanical functions in response to a command from a separate device, connected via the I/O interface;

an embedded operating system enabled via the processor;

a removable ROM associated with the peripheral via a receiver, the ROM being enabled to represent a file system and having relocatable object code stored therein; and

,

an enabling program stored in the storage device, the enabling program configured to enable the relocatable object code in association with the embedded operating system to provide extended functionality for the peripheral.

9. The system of claim 8 wherein the I/O interface comprises a printer cable.

10. The system of claim 8 wherein the peripheral device comprises a printer.

11. The system of claim 8 wherein the embedded operating system comprises VxWorks.

12. The system of claim 8 wherein the embedded operating system comprises a real-time operating system.

13. The system of claim 8 wherein the receiver includes a SIMM socket and the ROM includes a ROM SIMM.

14. A method for enhancing functionality of a peripheral device, comprising:

providing a removable ROM having a relocatable object file stored thereon indicative of extended functionality for the peripheral device;

storing an enabling algorithm in a dedicated storage device of the peripheral device; and

executing the enabling algorithm to enable the relocatable object file in the ROM to enhance functionality of the peripheral device within an operating system of the peripheral device.

15. The method in accordance with claim 14 wherein the enabling algorithm comprises the steps of:

initializing a memory driver;

establishing a mechanism to represent the ROM as a file system;

providing a file descriptor that identifies a location of the relocatable object file in the ROM; and

,

loading the relocatable object file into a random access memory of the peripheral device for enabling extended functionality of the peripheral device.

16. A method in accordance with claim 14 wherein the removable ROM is received in a Single In-line Memory Module (SIMM) socket in the peripheral device.

17. A method in accordance with claim 14 wherein the operating system comprises VxWorks.