Abstract: A modulating refrigeration system includes an evaporation unit and a condensing unit. The evaporation unit generates a first output airflow comprising a lower temperature, a lower relative humidity, or both than a first supply airflow and directs the first output airflow into a building. The condensing unit generates a second output airflow at a higher temperature than a second supply airflow and discharges the second output airflow to an unconditioned space. The evaporation unit comprises a first valve operable to direct a portion of refrigerant to a secondary evaporator and primary evaporator or to direct the entire flow of refrigerant to the primary evaporator and bypassing the secondary evaporator.

Abstract: The present invention provides a combined camera, camera stand, audio hub, and audio headset charger. The audio headset is wireless, with a wireless connection to the stand/hub. The stand/hub then connects over a bus to a personal computer. The camera can be both tilted and adjusted in height on the stand. Seamless switching from one audio path (e.g., external speakers and microphone in webcam) to another (e.g., wireless headset) occurs, providing the user with a regular telephone like experience. In addition, it is easily possible to mute audio as well as video for the entire system.

Abstract: The present invention provides a combined camera, camera stand, audio hub, and audio headset charger. The audio headset is wireless, with a wireless connection to the stand/hub. The stand/hub then connects over a bus to a personal computer. The camera can be both tilted and adjusted in height on the stand. Seamless switching from one audio path (e.g., external speakers and microphone in webcam) to another (e.g., wireless headset) occurs, providing the user with a regular telephone like experience. In addition, it is easily possible to mute audio as well as video for the entire system.