Abstract: An imaging unit programmed to reduce specular reflection in a captured image and improve the interpretation of decodable information within the image. The imaging unit is programmed to scan a predetermined region within the image that is susceptible to specular reflection, evaluate the pixel values within the region against a threshold value that is representative of specular reflection, and then replace the pixel value found to represent specular reflection with replacement pixel values that do not corrupt interpretation of the decodable information in the predetermined region. The threshold value and replacement values may be determined on an ad hoc basis and stored in local memory, or calculated for each captured image.

Abstract: An optical imager, a RFID reader, and a single host interface combined into a single module for use as a stand alone device or OEM product. The module includes a system microcontroller that interconnects an optical image microcontroller and a RFID microcontroller through the single interface to a host device, such as a computer. The system microprocessor is configurable via the host interface to selectively provide RFID reading, optical imaging, or a variety of combinations of both techniques. The module is programmable to allow the host computer trigger the RFID reader and optical imager. In addition, the system microcontroller is programmable via the host computer to provide image analysis, such as shape determination or recognition, prior to relaying data to the host computer through the single interface.

Abstract: A radiofrequency identification (RFID) transceiver and microcontroller packaged into a host controllable module for interfacing with a legacy or new host device. The module includes an interface for easy adaptation into a host device and the module microcontroller is programmed to interpret commands sent by the host device and operate the RFID transceiver accordingly. The module may further include a speaker or light emitting diode (LED) for alerting a user as to whether a RFID tag presented to the module has been successfully interrogated.

Abstract: A medical device, such as an electrosurgical scalpel, having a base unit and one or more attachable implements for performing medical procedures. The device include a host controllable module for capturing images of the attachable implement, decoding information contained in the image, and reporting the results of the decoding to the medical device. The host controllable module includes a system microcontroller that interconnects an optical imager and/or an RFID transceiver through the single interface to the host medical device. As a result, the module may be easily retrofit into existing medical devices and programmed to perform operations on legacy instruments as well as additional functions not previously available to the medical device.

Abstract: An antenna for use in connection with a combined RFID reader and optical imager. A printer circuit board having a wire loop positioned thereon and a hole formed therethrough is positioned in combination with an optical imager so that the imaging element of the optical imager may capture images through the hole. In addition, illuminating elements, such as LEDs may be provided on the printed circuit board to provide external or additional illumination of target objects. By positioning the antenna and optical imager in such a manner, the space required to implement optical imaging and RFID capabilities is improved and optical imaging and RFID interrogation may be more easily directed at a single object. In addition, extra illumination may be easily provided for improved imaging.

Abstract: A radiofrequency identification (RFID) transceiver and microcontroller packaged into a host controllable module for interfacing with a legacy or new host device. The module includes an interface for easy adaptation into a host device and the module microcontroller is programmed to interpret commands sent by the host device and operate the RFID transceiver accordingly. The module may further include a speaker or light emitting diode (LED) for alerting a user as to whether a RFID tag presented to the module has been successfully interrogated.

Abstract: An imaging unit programmed to reduce specular reflection in a captured image and improve the interpretation of decodable information within the image. The imaging unit is programmed to scan a predetermined region within the image that is susceptible to specular reflection, evaluate the pixel values within the region against a threshold value that is representative of specular reflection, and then replace the pixel value found to represent specular reflection with replacement pixel values that do not corrupt interpretation of the decodable information in the predetermined region. The threshold value and replacement values may be determined on an ad hoc basis and stored in local memory, or calculated for each captured image.

Abstract: An infusion pump including an optical imaging and an RFID reading module connected thereto through a host interface. The optical imaging and RFID module comprises a system microcontroller that interconnects an optical image capture subsystem and an RFID subsystem preferably routed through a single interface to the infusion pump. This infusion pump controls operation of the optical imaging and RFID module through commands provided through the interface and, as a result, capable of obtaining data encoded on barcodes and RFID tags. The infusion pump, through the optical imaging and RFID module, may thus automatically retrieve patient data, pharmacological information, dosage amounts, etc. from barcodes or RFID tags applied to the patient, intravenous medication, and even medical staff.