Abstract: A knee extension training device is provided with knee abutment rolls, heel abutment rolls and feet anchor rolls to facilitate a user from standing on the device in an upright manner with the knees, the heels, and the feet abutting the respective abutment rolls such that knee extension stretching and flexion exercise can be carried out by utilizing the user's own body weight.

Abstract: A knee extension training device is provided with knee abutment rolls, heel abutment rolls and feet anchor rolls to facilitate a user from standing on the device in an upright manner with the knees, the heels, and the feet abutting the respective abutment rolls such that knee extension stretching and flexion exercise can be carried out by utilizing the user's own body weight.

Abstract: A system and method are described for using RFID tags to track and monitor personnel and equipment in large environments and environments that are prone to multipath fading. The system scans the environment by selecting local interrogation zones where RFID tags may be located. Multiple antennae are used, each transmitting a portion of an activation signal, such that the activation signal will be formed in the selected local interrogation zone. Different subsets of the antennae are successively selected, each targeting the selected local interrogation zone, to repeat the activation signal for each subset of antenna. RFID tags in the local interrogation zone will receive the portions of the activation signals and process them to determine whether the full activation signal was destined for that local interrogation zone for each of the subsets of antennae. An activated RFID tag will transmit its tag information, including any data collected from sensors connected to the tag, back to the system.

Abstract: A system and method are described for using RFID tags to track and monitor personnel and equipment in large environments and environments that are prone to multipath fading. The system scans the environment by selecting local interrogation zones where RFID tags may be located. Multiple antennae are used, each transmitting a portion of an activation signal, such that the activation signal will be formed in the selected local interrogation zone. Different subsets of the antennae are successively selected, each targeting the selected local interrogation zone, to repeat the activation signal for each subset of antenna. RFID tags in the local interrogation zone will receive the portions of the activation signals and process them to determine whether the full activation signal was destined for that local interrogation zone for each of the subsets of antennae. An activated RFID tag will transmit its tag information, including any data collected from sensors connected to the tag, back to the system.

Abstract: The RFID system is for automatic recognition of one or all of a plurality of objects or articles located in an interrogation zone and having RFID tags mounted thereon. The tags have transponders carrying RFID information codes are sequentially and individually scanned with interrogation signals and activated to emit the information codes signals readable with a reader. The interrogation signals are based on the reader antennas and the configurations and locations of the tags. Signals returned from the transponders of the tags are processed to determine their electronic product code and location. The operation is repeated until the recognition and location of all tags in the entire interrogation zone are completed.

Abstract: The apparatus is applicable for stock-taking or for controlling items such as vehicles located in a garage. The device is provided with tags having transponders carrying RFID codes individually which may be activated by secure key, in the form of a card, to recognize an authorized access to the items. Auxiliary RFID transponders may be activated by a primary RFID transponder through induced voltage. A receiver upon receiving a signal of electronic code from the secure key will compare it with legitimate electronic codes in the transponder memory. If the code coincides with a legitimate electronic code, a transponder recognition device creates a signal to operate the primary transponder to transmit an information signal carrying the RFID codes.

Abstract: The RFID system is for automatic recognition of one or all of a plurality of objects or articles located in an interrogation zone and having RFID tags mounted thereon. The tags have transponders carrying RFID information codes are sequentially and individually scanned with interrogation signals and activated to emit the information codes signals readable with a reader. The interrogation signals are based on the reader antennas and the configurations and locations of the tags. Signals returned from the transponders of the tags are processed to determine their electronic product code and location. The operation is repeated until the recognition and location of all tags in the entire interrogation zone are completed.

Abstract: The RFID system is for automatic recognition of each one or all of a plurality of objects located within an interrogation zone. It is applicable for stock-taking or control of goods such as food. The objects provided with tags having transponders carrying RFID codes individually are sequentially scanned and activated one by one. Interrogation signals are transmitted to the tags based on the reader antennas and the configurations and locations of the tags. Signals returned from the transponders of the tags are processed for recognizing the locations of the selected tags and the electronic contents of the tags. The operation continues until the recognition and location of all tags in the entire interrogation zone have been completed.

Abstract: High-temperature kilns for manufacturing ceramic, glass and other products with lids on top are equipped with devices for lifting and lowering kiln lids. In this invention, a Kiln Lid Position Control Assembly is used for mounting and controlling a lid on a kiln body, wherein its hinges are fixed on the lateral sides of the kiln and on its rear. The lateral hinges are assisted by springs. A hinge mounting such as this, allows the lid to open upward, and meanwhile shift the lid to the rear side of the kiln. This facilitates lifting and lowering of a kiln lid, increasing the safety while working with the kiln, and preventing deformation of the kiln.