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US 7,441,708 B2Granted
Memory card socket using a dual-ported USB interface
OwnerPeter Arthur Schadeinventor
Life of this patent
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Abstract
In order to greatly simplify the electronics of devices utilizing memory cards, a new type of interface specification is presented which is called DPXD for a “Dual Ported extended Digital” memory card. The DPXD interface specification comprises an electrical signal set definition based upon a new dual USB concept call Dual Ported USB or DPUSB, a mechanical and electrical definition for a memory card socket, an associated memory card signal and mechanical specification for a memory card, and a mechanical definition for cables compatible with the DPXD socket.
Claims5
An interface definition comprising:
- an electrical signal set definition, wherein the eletrical signal set defintion comprises eight (DPUSB) signals, one reserved signal, a write protect signal and a card detect signal and wherein the eight DPSUB signals comprises peripheral differential data lines and host differential data lines;
- a mechanical and electrical definition for a memory card;
- an associated memory card signal and mechanical specification for a memory card;
- and
- a mechanical definition for cables compatible with an interface socket.
2 more elements
An interface socket comprising:
- a signal set that defines a peripheral port, a host port, a write-protect signal, wherein the eletrical signal set definition comprises eight (DPUSB) signals, one reserved signal, a write protect signal and a card detect signal and wherein the eight DPSUB signals comprises peripheral differential data lines and host differential data lines;
- and
- a form factor that is equivalent to a secure digital card.
Dependencies are inferred from the claim text.