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US 6,192,420 B1Granted
Controller with a vendor/product identification pin for a Universal Serial Bus by various manufacturers
AssigneeWeltrend Semiconductor Inc.
InventorsChuan-Ching Tsai, Joseph Gee, Chun-Min Wu, Chen-Yuan Liao
Life of this patent
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Abstract
A Universal Serial Bus (USB) controller with a VIDS pin to set up a plurality of vendor identification which can be accompanied with interface and software program. Thus, one chip can achieve Vendor ID/Product ID (VID/PID) of 2N types (N is a positive integer equal to or greater than 1) in accordance with various USB manufactures and products.
Claims4
A Universal Serial Bus controller, comprising of:
- a memory system storing a plurality of VID and PID codes;
- N input terminals, where N is equal to or greater than 1;
- an interface connected to the N input terminals;
- and
- a VIDS pin connected to said interface to set up the value of the N input terminals, said value being stored as VendorSelect variables to be used as indices for obtaining correct VID and PID codes and other relevant information stored in said memory.
2 more elements
Dependencies are inferred from the claim text.