2-4 Application Configurations

Motion Video Camera

Motion Video Camera

 

The motion camera (D30) is a full color camera with the following

 

features:

 

• Effective picture elements of 380,000 (EVI-D30) provides

 

high-resolution video images

 

• High speed pan/tilt/zoom actions controlled by VisuaLink

 

• Automatic focus

 

• Captures the video in the local room

Desktop Microphone

Microphone

 

 

 

 

 

A conference type omni-directional desktop microphone (AT841/INT)

 

 

 

 

 

is supplied with the VisuaLink Roll-About. This sensitive microphone is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

specifically designed for conference room applications and can pick-

 

 

 

 

 

up most anyone speaking in the conference area.

Cable Kit

The Cable Kit includes all necessary cables (except cables for connection to an BRI NT1 interface unit). The cables for the NT1 are supplied with that unit option.

Options

Additional options available with the Roll-About:

NT1

Graphics Camera

Second Pan/Tilt Camera

Additional AT841/INT Microphones

Second Cabinet

Additional Monitors

If using the Roll-About with external ISDN BRI connections, one (VisuaLink 128) or three (VisuaLink 384) BRI NT1 interface units will be required.

Additional cameras for motion (one D30 supplied) and a graphics camera can be added to the Roll-About configuration. Still graphics for hardcopy presentations, drawings, or brochures could be presented in a videoconference using a document camera.

If the room size is large, additional microphones (up to 3) can be added to the system for better audio pick-up. A second cabinet and monitor can be placed in a strategic location for better viewing.

VisuaLink 128/384 General Description

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NEC 128 manual Motion Video Camera, Microphone, Cable Kit, Options

128 specifications

The NEC 128 is a remarkable microprocessor that represents a significant leap in technological innovation during its time. Introduced in the early 1980s, this processor was designed to meet the demands of increasingly sophisticated computing tasks, primarily aimed at the burgeoning field of personal computing and embedded systems.

One of the standout features of the NEC 128 is its 16-bit architecture, which was quite advanced for its era. This architecture allows for a greater data throughput, enabling the handling of larger data sets and providing improved performance over its predecessors. The NEC 128 operates on a clock speed that typically ranges from 4 to 8 MHz, making it capable of executing instructions efficiently and swiftly, which was crucial for running more complex applications.

The processor is built using CMOS technology, which offers significant advantages in terms of power consumption compared to earlier bipolar technology. This characteristic made the NEC 128 not only suitable for desktop computing but also an appealing choice for battery-operated devices, enhancing its versatility. The use of CMOS allowed for a reduced heat output, contributing to the reliability and longevity of devices powered by this microprocessor.

Another noteworthy aspect of the NEC 128 is its support for a variety of addressing modes. This flexibility enables programmers to write more efficient and compact code, optimizing the use of memory resources. By supporting both immediate and indirect addressing, the NEC 128 allows for more dynamic programming, which is essential for developing applications that require real-time processing.

The processor's architecture also includes a robust instruction set that facilitates arithmetic operations, logical operations, and control flow management. This comprehensive instruction set is instrumental for developers, as it provides the necessary tools for creating a wide range of applications, from simple utilities to more complex software systems.

In summary, the NEC 128 microprocessor is characterized by its 16-bit architecture, efficient CMOS technology, and a versatile instruction set, making it a compelling choice for its era. Its combination of performance, power efficiency, and flexibility positioned it as a formidable player in the personal computing market and laid the groundwork for future advancements in microprocessor technology. With its various applications and features, the NEC 128 remains a noteworthy chapter in the history of computing.