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145 results about "Countdown timer" patented technology

Pre-scan for wireless channel selection

A pre-scan interval including three states is employed to synchronize access points and facilitate power control to facilitate initial channel selection where a group of nearby access point are contemporaneously initialized. In State 1 the access point is operable to transmit pre-scan frames which include device ID, and to listen for pre-scan frames transmitted by other access points. When a pre-scan frame is received, the received power level and device ID are noted and used to construct a table. The access point normally remains in State 1 until a minimum number of frame samples have been received from each access point that has been heard, and a minimum pre-scan time has elapsed. State 2 provides synchronization of transition of the access points between State 1 and State 3. When the access point is in State 2, it transmits pre-scan frames with a sync-mark bit set to indicate that the access point is in State 2. The access point continues to listen for pre-scan frames from other access points to determine whether those access points have transitioned to State 2, i.e., by reading the sync-mark bit in the received frames. The access point normally transitions to State 3 when all detected access points have transmitted pre-scan frames with the sync-mark bit set, i.e., when all detected access points have signaled readiness to move to State 3. In State 3 the access point begins a countdown to transition to the scan interval. While counting down, the access point transmits pre-scan frames which advertise the state of the countdown timer, and listens for pre-scan frames from other access points. If differences in the countdown state are detected then the access points re-synchronize by adopting the countdown state of the slowest clock.
Owner:XENOGENIC DEV LLC

STB (Set Top Box) and method for realizing personalized advertisement play through same

The invention relates to a method for realizing personalized advertisement play through a STB (Set Top Box), which is applied to a communication system formed by the STB, a cable television net and a television. The method comprises the following steps of: counting play times of all program types in the television; obtaining advertisement information of an IP packet in a current channel of program played in the television; switching the current channel of program played to an advertisement channel corresponding to a program type which has highest playing times in the television when the current time reaches the playing time of one of advertisements so as to play the advertisements in the advertisement channel; starting a countdown timer to carry out countdown monitoring for the playing time of the advertisements in the advertisement channel; and switching the playing channel of the television to the program channel which down not play the advertisements when countdown time in the countdown timer is over. By using the method, the playing times of each channel in the television can be counted by the STB, the corresponding advertisements are played according to the habits of watching television programs for users, and the playing efficiency of the advertisements is improved.
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1

"Countdown Timer" automatic water limiting supply shut off safety valve flo-control system

An electronically controlled electro-mechanical device designed to limit a finite amount of water per flush to a tank reservoir of the common household toilet, or tank-less toilet or urinal, providing positive shutoff of water flow and anti-siphon backflow prevention. The toilet is flushed, the flush lever activates an attached tilt switch, the tilt switch actuates the countdown timer by means of electrical linkage, the countdown timer in turn activates the solenoid valve by means of electrical connection. The water enters the solenoid valve, passing through the valve and on to the float valve mounted to the toilet tank for fill up. The Countdown timer counts down from the full minutes and seconds set to 00:00 and shuts off the solenoid valve and ultimately the flow of water. The Countdown timer then resets itself to the time set in memory for the next flush operation. A float eliminator may be affixed to the toilet tank replacing the float valve, then connected to the solenoid valve. For the purpose of adjusting the volume of water per flush the Countdown timer can be programmed from 00:00 minutes and seconds to 99 minutes and 55 seconds. The average toilet will need approximately 2 minutes. It is suggested that the user flush and time his toilet prior to installation of the electro-mechanical solenoid valve unit and add five seconds to assure the proper volume of water per flush.
Owner:ARIGONI JOHN HENRY

"Countdown Timer" automatic water limiting supply shut off safety valve flo-control system

An electronically controlled electro-mechanical device designed to limit a finite amount of water per flush to a tank reservoir of the common household toilet, or tank-less toilet or urinal, providing positive shutoff of water flow and anti-siphon backflow prevention. The toilet is flushed, the flush lever activates an attached tilt switch, the tilt switch actuates the countdown timer by means of electrical linkage, the countdown timer in turn activates the solenoid valve by means of electrical connection. The water enters the solenoid valve, passing through the valve and on to the float valve mounted to the toilet tank for fill up. The Countdown timer counts down from the full minutes and seconds set to 00:00 and shuts off the solenoid valve and ultimately the flow of water. The Countdown timer then resets itself to the time set in memory for the next flush operation. A float eliminator may be affixed to the toilet tank replacing the float valve, then connected to the solenoid valve. For the purpose of adjusting the volume of water per flush the Countdown timer can be programmed from 00:00 minutes and seconds to 99 minutes and 55 seconds. The average toilet will need approximately 2 minutes. It is suggested that the user flush and time his toilet prior to installation of the electro-mechanical solenoid valve unit and add five seconds to assure the proper volume of water per flush.
Owner:ARIGONI JOHN HENRY
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