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New from Microstar Laboratories: Data Acquired at 3.2 Million Samples per Second; High-Speed Simultaneous Sampling for the PCI Bus.


BELLEVUE, Wash.--(BUSINESS WIRE)--June 17, 1999--

Microstar Laboratories, Inc., maker of Data Acquisition Processor boards, today announced a new PCI (1) (Payment Card Industry) See PCI DSS.

(2) (Peripheral Component Interconnect) The most widely used I/O bus (peripheral bus).
 DAP board optimized for high-speed simultaneous sampling.

The new DAP 4400a/446 has four onboard A/D converters that each can acquire 800k 14-bit resolution samples per second simultaneously, for an aggregate throughput of 3.2M samples per second. The board has 16MB of onboard memory for data buffers, and uses DMA (1) (Digital Media Adapter) See digital media hub.

(2) (Document Management Alliance) A specification that provides a common interface for accessing and searching document databases.
 bus-mastering to transfer data to the PC.

Sixteen onboard single-ended inputs, multiplexed in groups of four, share the 3.2 million samples per second throughput of the DAP 4400a. If an application requires sixteen simultaneous inputs, each acquiring data at 800k samples per second, then four synchronized DAP 4400a boards, installed in a single PC, can deliver the aggregate throughput of 12.8M samples per second shared by these sixteen simultaneous inputs.

Every model in the entire range of DAP boards has its own onboard intelligence implemented as DAPL DAPL Direct Access Programming Library
DAPL Dense Aqueous Phase Liquid
DAPL Direct Access Provider Library
DAPL Direct Access Protocol Layer
, a multitasking multitasking

Mode of computer operation in which the computer works on multiple tasks at the same time. A task is a computer program (or part of a program) that can be run as a separate entity.
 real-time operating system (operating system) Real-Time Operating System - (RTOS) Any operating system where interrupts are guaranteed to be handled within a certain specified maximum time, thereby making it suitable for control of hardware in embedded systems and other time-critical applications.  optimized for high performance real-time data Real-time data denotes information that is delivered immediately after collection. There is no delay in the timeliness of the information provided.

Some uses of this term confuse it with the term dynamic data.
 acquisition applications. The new DAP 4400a model, like other DAPs with onboard 32-bit processors, includes DAPL 2000 -- a full 32-bit implementation of DAPL, shipped with each board. DAPL runs a data acquisition application on a DAP, free from any delays imposed by Windows or other programs running on the PC at the same time.

When real time means response in milliseconds, the message-driven, event-polling Windows user interface cannot work in real time. Even under Windows NT (Windows New Technology) A 32-bit operating system from Microsoft for Intel x86 CPUs. NT is the core technology in Windows 2000 and Windows XP (see Windows). Available in separate client and server versions, it includes built-in networking and preemptive multitasking. . So, in that case, neither can programs running under Windows. But many users require real-time performance from their systems -- and from the industry standard Windows-compatible interfaces to their systems: DASYLab, HP VEE HP VEE - Hewlett-Packard Visual Engineering Environment , LabVIEW, etc. For these users, Data Acquisition Processor boards and driver software from Microstar Laboratories present a ready-made solution: users can stay with the software they prefer and they can have the real-time performance they want.

Measuring a real-time process requires computing power on demand. If some polled event has tied up CPU CPU
 in full central processing unit

Principal component of a digital computer, composed of a control unit, an instruction-decoding unit, and an arithmetic-logic unit.
 cycles on the PC at that time, then -- without onboard intelligence -- the system loses data and that corrupts measurements. Onboard intelligence deals up front with the critical aspects of any application: the parts that have to run in real time.

DAPL generates a Windows event when the DAP requires direction from the user interface software on the PC. This allows the PC running Windows to perform in its native, virtual event-driven mode. Meanwhile the DAP keeps monitoring real events in real time where it really matters.

In place of an industry standard interface, or one from Microstar Laboratories, a developer can write a custom user interface in any language that supports DLL (1) See data link layer.

(2) (Dynamic Link Library) An executable program module in Windows that performs one or more functions at runtime. DLLs are not launched by the user; they are called for by an executable program or by other DLLs.
 calls. Microstar Laboratories also offers DAPtools OCX (OLE Control EXtension) A component software technology from Microsoft that enables a Windows program to add functionality by calling ready-made components. Generally called "OLE controls" or "OLE custom controls," they appear to the end user as just another part of  for applications written in Borland Delphi or Microsoft Visual Basic (32-bit).

The DAP 4400a/446 costs $3995, DAPL 2000 included, and is available now.

Editorial Overview:

Microstar Laboratories, Inc., maker of Data Acquisition Processor boards, today announced a new PCI DAP board optimized for high-speed simultaneous sampling. The new DAP 4400a/446 has four onboard A/D converters that each can acquire 800k 14-bit resolution samples per second simultaneously, for an aggregate throughput of 3.2M samples per second. An onboard operating system allows real-time work under Windows (95, 98, NT) using HP VEE, LabVIEW, DASYLab, or other software, free from PC-related delays. Real-time functions include software triggering, data reduction, filtering, FFT (Fast Fourier Transform) A class of algorithms used in digital signal processing that break down complex signals into elementary components.

FFT - Fast Fourier Transform
, and order analysis. Price: $3995; availability: immediate.

Note to the Editor:

Microstar Laboratories, Inc. claims Microstar Laboratories, Data Acquisition Processor, DAP, DAP 4400a, DAPcell, DAPlog Plus, DAPL, DAPL 2000 and DAPtools OCX as trademarks.

Microsoft Corporation has registered Microsoft, Windows, Windows 95, Windows 98, and Windows NT as trademarks. DATALOG GmbH & Co. KG claims DASYLab as a trademark. National Instruments Corporation has registered LabVIEW as a trademark. Hewlett-Packard company has registered HP VEE as a trademark. Other product names may be trademarks of their respective companies.

Microstar Laboratories makes it a practice to use an appropriate symbol at the first occurrence of a trademark or registered trademark name in a document, or to include trademark statements like this with the document.
COPYRIGHT 1999 Business Wire
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1999, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Business Wire
Geographic Code:1USA
Date:Jun 17, 1999
Words:686
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