Electrical computers and digital data processing systems: input/ – Intrasystem connection – Bus access regulation
Reexamination Certificate
2006-04-04
2006-04-04
Dang, Khanh (Department: 2111)
Electrical computers and digital data processing systems: input/
Intrasystem connection
Bus access regulation
C710S305000
Reexamination Certificate
active
07024504
ABSTRACT:
A signal state detection circuit of a data transfer control device notifies a processing of results detected by a line state detection circuit or a power supply line detection circuit by using an interrupt signal. The processing sets a state command corresponding to a state of a transition destination judged based on the notified detection results in a control register of a state controller. A state command decoder decodes the state command set in the control register and generates a control signal. A signal line control circuit controls a signal state of at least one of signal lines formed of data signal lines (D+ and D−) and power supply lines (VBUS and GND) based on the control signal.
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Kubota Shinsuke
Matsuda Kuniaki
Nagao Kenyou
Oshita Shun
Saito Nobuyuki
Dang Khanh
Oliff & Berridg,e PLC
Seiko Epson Corporation
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