Patent ID: 7174193

Claim:
An apparatus comprising: AV means; a power supply assembly coupled to the AV means for supplying power thereto and for signal communication; and an image catching and sound reading assembly located in a position distal from the power supply assembly; wherein the image catching and sound reading assembly is operative to catch images and read sound from a monitoring location thereof, convert the images and the sound into image and sound signals, and send the image and sound signals in a form of electromagnetic waves to the power supply assembly, and the power supply assembly is operative to send the image and sound signals to the AV means for display and broadcasting, wherein the power supply assembly comprises a charging circuit, a battery protecting circuit connected to the charging circuit, a rechargeable battery connected to the battery protecting circuit, a receiver circuit connected to the battery protecting circuit and the charging circuit, a first antenna coupled to the receiver circuit, and a cable extended to couple to the AV means.