22772results about How to "Low production cost" patented technology

A transaction apparatus (10) includes a multifunction card (12) and a portable terminal (14). The multifunction card includes a programmable memory (18) and a magnetic stripe (16) thereon. The programmable memory on the card is used to store indicia corresponding to account data which is input to the memory by reading with the terminal magnetic stripe data from a plurality of conventional magnetic stripe cards. The programmable memory further includes data representative of cash value as well as instructions, prompt messages and icons presented in conducting transactions. A user is enabled to operate the apparatus to select one of the accounts stored in memory, and to write account data corresponding to the selected account to the magnetic stripe of the card. The user is also enabled to use the apparatus to enter visible indicia such as bar codes and to selectively reproduce the bar codes on the display of the apparatus. The apparatus is also selectively operative to transfer funds between accounts of the user and data representative of cash value stored on the card.

Apparatus, method, logic arrangement and storage medium are provided for increasing the sensitivity in the detection of optical coherence tomography and low coherence interferometry (“LCI”) signals by detecting a parallel set of spectral bands, each band being a unique combination of optical frequencies. The LCI broad bandwidth source can be split into N spectral bands. The N spectral bands can be individually detected and processed to provide an increase in the signal-to-noise ratio by a factor of N. Each spectral band may be detected by a separate photo detector and amplified. For each spectral band, the signal can be band p3 filtered around the signal band by analog electronics and digitized, or, alternatively, the signal may be digitized and band pass filtered in software. As a consequence, the shot noise contribution to the signal is likely reduced by a factor equal to the number of spectral bands, while the signal amplitude can remain the same. The reduction of the shot noise increases the dynamic range and sensitivity of the system.

A multicolor organic light emitting device employs vertically stacked layers of double heterostructure devices which are fabricated from organic compounds. The vertical stacked structure is formed on a glass base having a transparent coating of ITO or similar metal to provide a substrate. Deposited on the substrate is the vertical stacked arrangement of three double heterostructure devices, each fabricated from a suitable organic material. Stacking is implemented such that the double heterostructure with the longest wavelength is on the top of the stack. This constitutes the device emitting red light on the top with the device having the shortest wavelength, namely, the device emitting blue light, on the bottom of the stack. Located between the red and blue device structures is the green device structure. The devices are configured as stacked to provide a staircase profile whereby each device is separated from the other by a thin transparent conductive contact layer to enable light emanating from each of the devices to pass through the semitransparent contacts and through the lower device structures while further enabling each of the devices to receive a selective bias. The devices are substantially transparent when de-energized, making them useful for heads-up display applications.