Abstract: An inventory management device wherein the user inputs a material of known characteristics such as weight, thickness, and width, or length into a computer via user interface. The device calculates the length of the material and displays the remaining coiled length on a display screen. When the user is ready to feed the material, the material is rolled over a feed wheel, which turns a measure wheel. The measure wheel communicates with a computer control chip to deduct the quantity fed off the coil. The actual remaining length is shown on the display screen in real time or near real time. When the user is finished working with the material, the user can select to print a label with a barcode to affix to the material. The barcode contains characteristics of the material so the material can be inventoried and/or reused on the feeder.

Abstract: An inventory management device wherein the user inputs a material of known characteristics such as weight, thickness, and width, or length into a computer via user interface. The device calculates the length of the material and displays the remaining coiled length on a display screen. When the user is ready to feed the material, the material is rolled over a feed wheel, which turns a measure wheel. The measure wheel communicates with a computer control chip to deduct the quantity fed off the coil. The actual remaining length is shown on the display screen in real time or near real time. When the user is finished working with the material, the user can select to print a label with a barcode to affix to the material. The barcode contains characteristics of the material so the material can be inventoried and/or reused on the feeder.

Abstract: An apparatus for a microphone and speaker is provided which provides a sealed chamber behind the speaker to prevent sound waves behind the speaker from cancelling sound waves in front of the speaker. In addition, the apparatus is configured to mechanically isolate the speaker from the apparatus housing in order to improve performance of the system. A pliant material such as a damping material with a relatively linear compression characteristic, such as a thermal plastic elastomer, may be used to isolate the speaker from the apparatus housing as well as providing a relatively air tight chamber behind the speaker.

Abstract: An apparatus for a microphone and speaker is provided which provides a sealed chamber behind the speaker to prevent sound waves behind the speaker from cancelling sound waves in front of the speaker. In addition, the apparatus is configured to mechanically isolate the speaker from the apparatus housing in order to improve performance of the system. A pliant material such as a damping material with a relatively linear compression characteristic, such as a thermal plastic elastomer, may be used to isolate the speaker from the apparatus housing as well as providing a relatively air tight chamber behind the speaker.

Abstract: A method and system for distinguishing valid DTMF signals from spurious DTMF noise includes detecting signals having a first signal component indicative of DTMF signals and having a second signal component having frequencies unrelated to DTMF frequencies. The second component is utilized in isolation from the DTMF frequencies of the first signal component. The analysis includes determining a signal level representative of the second signal component. If the signal level exceeds a predetermined threshold level, the first signal component is determined to be spurious noise. On the other hand, if the signal level is below the threshold level, the first signal component is passed to a DTMF-responsive system, such as a voicemail system or a voice response unit. Optionally, the operation includes requesting confirmation of the signal of interest, if the signal level of the second signal component falls within a range which includes the threshold level as its upper limit.