Patent ID: 6876400
Filing Date: 2005-04-05
Classification: G06F,H04N

Abstract:
1. A television signal receiver, comprising: a first circuit board including a memory and control circuitry for controlling an operation of the receiver, the control circuitry controlling the operation of the receiver in response to data stored in the memory; and a second circuit board operably coupled to the first circuit board via inter-integrated circuit bus lines, the second circuit board including a controller, coupled to the inter-integrated circuit bus lines, for generating first control signals in accordance with a first signal format in a first operational state and second control signals in accordance with a second signal format in a second operational state, the controller placing the memory into an unpowered state during the second operational state, the memory being coupled to means for preventing the memory from keeping the bus lines at a low state when the memory is in the unpowered state, wherein the memory and the control circuitry are coupled to the inter-integrated circuit bus lines, and the controller transmits the first control signals to the memory via the inter-integrated circuit bus lines without affecting the control circuitry in the first operational state, and transmits the second control signals to the control circuitry via the bus lines without affecting the memory in the second operational state.