摘要:
An automatic gain control (AGC) for a Satellite Digital Audio Radio Service (SDARS) receiver, a method of automatically controlling gain and a SDARS receiver incorporating the AGC or the method. In one embodiment, the AGC includes: (1) an AGC function selector configured to compare first and second time division multiplexed (TDM) power signals and a nonzero threshold and select an AGC function based thereon and (2) an AGC function applier associated with the AGC function selector and configured to apply the AGC function to the first and second TDM power signals to develop therefrom an AGC control signal.
摘要:
A content channel is periodically or permanently allocated for use as an “update channel” or “firmware-image download” channel. Any firmware images downloaded to receivers in the system are thoroughly tested prior to being distributed among the receivers. Header information is included in the firmware image when it is transmitted to the receivers, and the firmware image is not accepted for use by the receivers until it is verified on the receiver side. Further, rather than overwriting the existing firmware, the new validated firmware updates are stored separately on the receivers and are utilized when the receiver is rebooted during power-up or by the host controller. If, during this reboot process, an error occurs in the new firmware image, the receiver is configured to revert back to the original firmware image so that it will remain operational, albeit without the updated firmware features.
摘要:
An inventive system and method for collaborative commerce is presented. The invention comprises activating an art board, placing items onto the art board, inviting users to interact with the art board, and collaborating with the invited users. Additional features and functions include purchasing items shown on the art board, including by placing the items in a shopping cart, using e-mail, text messaging, and instant messaging to invite users, who may be chosen from a buddy list. Collaborating can be performed using voice chatting, video chatting, instant messaging, and text messaging, and includes examining reviews, ratings, reputations, and recommendations, and also includes displaying details regarding the items. In addition, reports comprising information regarding the items can be generated. A toolbar can be located on the art board and used to initiate inviting of users and placing of items onto the art board.
摘要:
An inventive system and method for collaborative commerce is presented. The invention comprises activating an art board, placing items onto the art board, inviting users to interact with the art board, and collaborating with the invited users. Additional features and functions include purchasing items shown on the art board, including by placing the items in a shopping cart, using e-mail, text messaging, and instant messaging to invite users, who may be chosen from a buddy list. Collaborating can be performed using voice chatting, video chatting, instant messaging, and text messaging, and includes examining reviews, ratings, reputations, and recommendations, and also includes displaying details regarding the items. In addition, reports comprising information regarding the items can be generated. A toolbar can be located on the art board and used to initiate inviting of users and placing of items onto the art board.
摘要:
A heat pump system is presented having a primary compressor, a booster compressor, a multi-step thermostat, an indoor coil, an outdoor coil, a refrigerant flow conduit connecting these elements is a closed loop system, and at least one pressure sensor positioned to always sense the refrigerant system low side pressure, which is commensurate with outdoor ambient air temperature in all heating modes of operation. The pressure sensor functions as an override and safety control to prevent or permit operation of the compressors, and also other system components, depending on outside air temperature. The primary compressor is preferably a multi-capacity compressor. A defrost energy transfer fluid is used in a defrost cycle.