Abstract: There is provided a pipelined A/D converter in which plural stages Stage 1 to Stage N each including an MDAC (i.e., Multiplying DA Converter) are connected. The pipelined A/D converter is configured with a Gain-AMP (12) included in the MDAC for the SPM, MOS transistors (Mx1) and (Mx2) as a differential pair having output ends connected to a sampling capacitor CsI on a subsequent stage, MOS transistors (My1) and (My2) as a load unit connected to the differential pair, a current source (I3) configured to supply a current to the MOS transistors (Mx1) and (Mx2) as the differential pair, and current sources (I1) and (I2) configured to adjust the current flown across the MOS transistors (My1) and (My2) as the load unit.

Abstract: A portable, handheld data recorder for pressure-transfer printing embossed information onto a form set from a credit card or the like includes a push/pull platen assembly contained in a closed housing but manually operable from the exterior of the device. A releasable retainer also within the housing is provided for holding the form set in place during imprinting and again is manually operable from the exterior of the device. The recorder also includes resilient means for accommodating credit cards of different thicknesses.

Abstract: Apparatus for printing indicia upon a stationary paper surface and including a rotating pressure ring with the ring being held in a skate assembly having its surface normally forcing the paper to be printed against an ink retaining ribbon, or other character printing medium, and a printer such as a numbering machine. The rotating pressure ring is normally held within a carriage device or the like, such as a skate assembly which carries the rotatable ring. The skate assembly is normally mounted for movement along a backing plate or rail, and motion may be applied to the assembly through any convenient means, including hand motion, or motion achieved for the assembly through mounting upon an endless belt. The pressure ring is driven by means of a pair of rollers which engage the surface of a running rail, or backing plate and thereby provide rotational motion to the rotating pressure ring.

Abstract: A time card printer comprising a plurality of type wheels rotatably mounted on a common supporting shaft and a plurality of printing rolls radially aligned with respective type wheels, the printing rolls being mounted on a common drive shaft which rotates in response to insertion of a time card and is parallel to the supporting shaft, each printing roll pressing the inserted time card against the type surface of the corresponding type wheel during rotation of the drive shaft, the printing rolls being moved against the corresponding type wheels one after the other.