Abstract: A radio sync system for photographic equipment including a transmitter unit and a receiver unit. The transmitter unit utilizes a power-management scheme for keeping the transmitter unit in a low-power stand-by state except when an RF signal needs to be transmitted, and returning the transmitter unit back into the low-power stand-by state within a predefined short period of time after transmitting the RF signal. The receiver unit utilizes a power-sensing scheme for keeping the receiver unit in a low-power stand-by state when it is not connected to a remote photographic equipment or the remote photographic equipment is powered off but turning the receiver unit on when it is connected to a remote photographic equipment and the remote photographic equipment is powered on such that when an RF signal is received, the receiver unit can send a command signal to operate the remote photographic equipment.

Abstract: A portable speaker system includes a telescoping enclosure containing at least two drivers. The telescoping enclosure includes an inner section nested within an outer section. Each of the inner section and the outer section includes at least one speaker driver. The telescoping enclosure is configurable in at least two positions, a retracted or collapsed position and an extended position. By extending the telescoping enclosure, greater channel separation and greater internal volume for the enclosure is achieved.

Abstract: A radio sync system for photographic equipment including a transmitter unit and a receiver unit. The transmitter unit utilizes a power-management scheme for keeping the transmitter unit in a low-power stand-by state except when an RF signal needs to be transmitted, and returning the transmitter unit back into the low-power stand-by state within a predefined short period of time after transmitting the RF signal. The receiver unit utilizes a power-sensing scheme for keeping the receiver unit in a low-power stand-by state when it is not connected to a remote photographic equipment or the remote photographic equipment is powered off but turning the receiver unit on when it is connected to a remote photographic equipment and the remote photographic equipment is powered on such that when an RF signal is received, the receiver unit can send a command signal to operate the remote photographic equipment.

Abstract: A portable speaker system includes a telescoping enclosure containing at least two drivers. The telescoping enclosure includes an inner section nested within an outer section. Each of the inner section and the outer section includes at least one speaker driver. The telescoping enclosure is configurable in at least two positions, a retracted or collapsed position and an extended position. By extending the telescoping enclosure, greater channel separation and greater internal volume for the enclosure is achieved.