Abstract: A system includes a pressure exchanger (PX) and a condenser. An outlet of the condenser is fluidly coupled to a first inlet of the PX. The system further includes a generator assembly configured to be conditionally coupled to the PX. Coupling the generator assembly to the PX causes a turbine to convert rotational energy of the PX to electrical energy.

Abstract: Systems and methods for presence-based account data association with devices are disclosed. For example, a presence event may be detected and details of the presence event may be utilized to determine whether and how to initiate, maintain, or end an account-association session associated with a secondary device. A current session status and a determination as to whether a primary device is associated with a previously-utilized primary account identifier for the secondary device may be used to determine whether connection notifications should be sent and/or whether the secondary device should be within a threshold distance from a primary device to establish the account-association session.

Abstract: A method of operating an oven to cook a food product that includes changing a heat setting of a heating element of the oven, selecting a cook time for the food product in the oven, driving a heating element of the oven at a heat power input based on the heat setting, predicting a cooking ability of the oven by calculating an estimated temperature in the oven using a formula that is a function of a heat power input during a previous time period, and modifying the cook time to a modified cook time based on the estimated temperature that was calculated using the formula.

Abstract: A method of operating an oven to cook a food product that includes changing a heat setting of a heating element of the oven, selecting a cook time for the food product in the oven, driving a heating element of the oven at a heat power input based on the heat setting, predicting a cooking ability of the oven by calculating an estimated temperature in the oven using a formula that is a function of a heat power input during a previous time period, and modifying the cook time to a modified cook time based on the estimated temperature that was calculated using the formula.

Abstract: A conveyor oven comprising a housing defining a cook chamber and a heating element adjacent the cook chamber. A controller is programmed to control a cook time based upon a current estimated temperature in the oven, wherein the current estimated temperature is a function of a heat power input during a previous time period and can also be a function of a previous estimated temperature. The oven can further include a conveyor and a motor coupled to the conveyor, wherein the controller is programmed to control a cook time of the conveyor. The controller can also be programmed to control the cook time based upon a product loading condition. The oven can further include a presence sensor for detecting the presence of food in the oven and for providing a corresponding signal. Preferably, the calculation is an eye calculation that is a function of a previous eye calculation.

Abstract: A conveyor oven comprising a housing defining a cook chamber and a heating element adjacent the cook chamber. A controller is programmed to control a cook time based upon a current estimated temperature in the oven, wherein the current estimated temperature is a function of a heat power input during a previous time period and can also be a function of a previous estimated temperature. The oven can further include a conveyor and a motor coupled to the conveyor, wherein the controller is programmed to control a cook time of the conveyor. The controller can also be programmed to control the cook time based upon a product loading condition. The oven can further include a presence sensor for detecting the presence of food in the oven and for providing a corresponding signal. Preferably, the calculation is an eye calculation that is a function of a previous eye calculation.

Abstract: A system and method for burning program information and compressed audio content into a recordable audio compact disc. The resulting compact disc can then be read and the information and audio content stored in non-volatile or other memory in an audio player tailored for use in the music-on-hold or in-store advertising markets. In various examples, the system and method includes an audio player with a CD player mechanism and audio production builder software. The data is processed in a digital format. In addition to the stored audio content, the compact disc includes program or play information.

Abstract: A cellular telephone includes a receiver for receiving cellular communications and a transmitter for transmitting cellular communications. A controller is coupled to the receiver and the transmitter and controls the receiver and the transmitter based on the command signals. The controller includes a first memory for storing call rate information indicative of rates charged for the cellular communications. A timer provides a timer signal indicative of a time during which the cellular communications take place. The controller determines the amount of currency to be charged for the cellular communications based on the call rate information and the timer signal. An administrator station is provided for loading a threshold amount of currency into the cellular telephone. The entire system can be tracked and managed, and system wide statistics are available to the system operator.

Abstract: An implantable defibrillator arrangement has a housing adapted for in vivo implantation in a patient, the housing containing a capacitor connectable through a controllable switch arrangement to a voltage source for charging, and two electrodes attached in vivo to the heart. An inductance is also provided for assisting in the generation of an electrical defibrillation pulse, the inductance being contained in a second, separate housing provided with terminals for electrically connecting the inductance via leads to the other housing and to one of the electrodes. The inductance can thereby be easily changed, by connecting an inductance in a second housing having an appropriate value, so as to match the defibrillation pulse to different electrode configuration. It is also possible to provide further passive components in the second, separate housing.