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:
Sep. 30, 2025
Filed:
Jul. 10, 2023
Western Digital Technologies, Inc., San Jose, CA (US);
Sandisk Technologies, Inc., Milpitas, CA (US);
Abstract
Aspects of a storage device are provided for producing an oscillator clock from a host reference clock in a storage device lacking a crystal oscillator. The storage device includes a memory die, and an oscillator circuit that generates a clock based on a host reference clock and outputs an output clock to the memory die. While the host reference clock is available, the output clock includes a frequency that is identical to a frequency or a frequency division factor of the host reference clock. In response to loss of the host reference clock, the oscillator circuit reduces the frequency of the output clock to a frequency of the generated clock within a clock cycle following the loss of the host reference clock. In response to re-availability of the host reference clock, the oscillator circuit increases the frequency of the output clock back to the frequency of the host reference clock.