초록 ▼

An apparatus and method for providing power control in an in-flight entertainment system is disclosed. The power control circuit comprises a first power supply that supplies a first voltage and a second power supply that supplies a second voltage. The circuit further comprises a detector circuit hav

An apparatus and method for providing power control in an in-flight entertainment system is disclosed. The power control circuit comprises a first power supply that supplies a first voltage and a second power supply that supplies a second voltage. The circuit further comprises a detector circuit having an input terminal is coupled to the first power supply, and an output terminal that is coupled to the second power supply. The detector circuit generates a first signal upon detection of a valid first voltage level. A control circuit is coupled to the first power supply and the output terminal of the detector circuit. The control circuit is enabled upon receipt of the first signal. A processing circuit is coupled to the second power supply and the control circuit, wherein the second power supply provides the second voltage to the processing circuit upon receipt of the first signal, and the control circuit issues an enable signal to the processing circuit when the processing circuit has received the second voltage.

대표청구항 ▼

[ What is claimed is:] [1.] A power control circuit in an in-flight entertainment system, comprising:a first power supply for providing a first voltage;a second power supply for providing a second voltage;a detector circuit having an input terminal coupled to said first power supply, said detector c

[ What is claimed is:] [1.] A power control circuit in an in-flight entertainment system, comprising:a first power supply for providing a first voltage;a second power supply for providing a second voltage;a detector circuit having an input terminal coupled to said first power supply, said detector circuit having an output terminal coupled to said second power supply, said detector circuit generates a first signal upon detection of a valid first voltage level;a control circuit coupled to said first power supply and said output terminal of said detector circuit, said control circuit being enabled upon receipt of the first signal; anda processing circuit coupled to said second power supply and said control circuit, wherein said second power supply provides said second voltage to said processing circuit upon receipt of the first signal, and said control circuit issues an enable signal to said processing circuit when said processing circuit has received said second voltage.