A barcode reader and an accessory are disclosed. A barcode reader may include an interface for communication with a host computer via a wireless or wired link and an authentication system to establish mutual authentication with the host computer. The barcode reader may include a connector for connecting the barcode reader to the external power source or the host computer. The connector may be a combined power and data connector. An accessory may provide operating power to a barcode reader and provide decoded data of an image of a barcode received from the barcode reader to a host computer. The accessory may include connectors and an interface system. The interface system may include a processor configured to send the decoded data to the host computer, an authentication system, and a power interface. The accessory may include RF circuits for communicating with the host computer via a wireless link.

A data processing device is provided that includes an enclosure, a circuit board, a data capture assembly, a sound generator housing, and a sound generator. The enclosure has an internal cavity in which the circuit board is disposed. The sound generator housing is operably coupled with the circuit board and includes at least one wall having at least one sound port and extending upwardly from the circuit board to form a sound chamber. The sound generator is operably coupled with the circuit board and is at least partially disposed within the sound chamber to generate a sound at a resonant frequency. The sound generator housing is dimensioned to amplify the resonant frequency of the sound generator and port the generated sound to the internal cavity of the enclosure.

At least some embodiments of the present invention are directed to barcode readers having a housing with upper and lower portions, and a platter. Additionally, the barcode readers include a platter frame and an imaging assembly, the first imaging assembly having a first field of view (FOV) directed through at least one of the substantially horizontal window or the substantially upright window of the housing, and a reader accessory removably coupled with at least one of the lower housing portion or the platter frame that includes a thermal transmitter. The thermal transmitter is thermally coupled with at least one of the housing frame or the platter frame to transfer thermal energy generated by the reader accessory thereto.

A barcode reader and an accessory are disclosed. The accessory may include an interface system and a wireless and/or wired interface for communication with a host computer such that the barcode reader may communicate with the host computer via the accessory. The interface system includes an authentication coprocessor such that the barcode reader may establish mutual authentication with the host computer using the authentication coprocessor of the interface system. The barcode reader may send a request for an accessory identifier, and the accessory may then query the authentication coprocessor for the accessory identifier and provide the accessory identifier to the barcode reader. The barcode reader may send an authentication challenge to the accessory, and the accessory may then present the authentication challenge to the authentication coprocessor to obtain an authentication response, and provide the authentication response to the barcode reader.

A barcode reader may include an image sensor array, an optic system, an image buffer, and a plurality of pre-processing circuits implemented in hardware. The optic system may be configured to focus an image of a barcode onto the image sensor array. The plurality of pre-processing circuits may collectively implement a plurality of different image processing functions. Each pre-processing circuit may be configured to receive as input an image frame from the image sensor array or an image data record from the image buffer. The image data record may be derived from the image frame. Each pre-processing circuit may also be configured to perform an image processing function with respect to the image frame or the image data record, thereby generating a new image data record. A decoder may use at least one image data record to decode the barcode.

Systems and methods for cancelling noise caused by the flicker of ambient lights are provided. Such noise cancelling systems and methods may be incorporated in a laser-based barcode scanning device. In one example, a barcode scanning device includes a light source, a first sensor, a second sensor, and a noise cancelling circuit. The light source is configured to emit a beam of light. The first sensor is configured to detect a first optical signal indicative of light reflecting off of a barcode. The reflected light may originate from the light source and from at least one ambient light source in the vicinity of the barcode scanning device. The second sensor is configured to detect a second optical signal indicative of light originating from the at least one ambient light source. The noise cancelling circuit is configured to obtain a noise-cancelled scanning signal from the first and second optical signals.

An image capture and processing system supports a multi-tier modular software, and plug-in extendable, architecture. The image capture and processing system can be realized as an image-capturing cell phone, a digital camera, a video camera, mobile computing terminal and portable data terminal (PDT), provided with suitable hardware platform, communication protocols and user interfaces. A third-party customer can write and install a software plug-in into the application layer so as to enhance or modify the behavior of the image capture and processing system without any required knowledge of the hardware platform, communication protocols and/or user interfaces.

A barcode reader and an accessory are disclosed. A barcode reader may include an interface for communication with a host computer via a wireless or wired link and an authentication system to establish mutual authentication with the host computer. The barcode reader may include a connector for connecting the barcode reader to the external power source or the host computer. The connector may be a combined power and data connector. An accessory may provide operating power to a barcode reader and provide decoded data of an image of a barcode received from the barcode reader to a host computer. The accessory may include connectors and an interface system. The interface system may include a processor configured to send the decoded data to the host computer, an authentication system, and a power interface. The accessory may include RF circuits for communicating with the host computer via a wireless link.

There is set forth herein an indicia reading apparatus comprising two or more light sensing assemblies. In one embodiment, the indicia reading apparatus can comprise a linear light sensing assembly and an area light sensing assembly, and can be operative to determine the range between the apparatus and the indicia. In one embodiment, the indicia reading apparatus can be operative to apply a range-assisted gain to the data output by one or more of the linear light sensing assembly and the area light sensing assembly to increase the likelihood of indicia reading and improve expected indicia read time.

A data decoding system can comprise a client computer including an imaging device and one or more servers executing at least one decoding process. The client computer can be configured to acquire an image of decodable indicia and to process the acquired image by: (i) identifying one or more areas of interest within the image; (ii) cropping the image based on the identified areas of interest; (iii) clipping one or more images from the image based on the identified areas of interest; (iv) increasing or reducing a pixel resolution of at least part of the image; (v) converting the image to a grayscale image or to a monochrome image; and/or (vi) compressing the image using a compression algorithm. The decoding process can be configured, responsive to receiving a decoding request comprising the processed image, to decode the decodable indicia and to transmit the decoding operation result to the client computer.