The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 2005
Filed:
Sep. 10, 2003
Yen-chang Chiu, Taipei, TW;
Chun-an Tang, Baoshan Township, Hsinchu County, TW;
Kuang-yeu Lin, Jungli, TW;
Cheng-hao Tang, Tucheng, TW;
Yen-Chang Chiu, Taipei, TW;
Chun-An Tang, Baoshan Township, Hsinchu County, TW;
Kuang-Yeu Lin, Jungli, TW;
Cheng-Hao Tang, Tucheng, TW;
Elan Microelectronics Corporation, Hsin-Chu, TW;
Abstract
An on-system programmable and off-system programmable chip comprises a control circuit connected to an on-system programmable nonvolatile memory and an off-system programmable nonvolatile memory, and a pumping circuit connected to the on-system programmable nonvolatile memory. In a programming mode of the chip, external programming voltages are provided for programming the off-system programmable nonvolatile memory, and in an operation mode of the chip, the pumping circuit produces internal programming voltages for the on-system programmable nonvolatile memory for programming the on-system programmable nonvolatile memory.