Sony 930, 950, 900 manual Overview, Advanced Digital Signal Processing Adsp, Sony Design Criteria

1 1-1.Overview

The HDC-900/950/930 family is designed to provide a wide range of choices of HDTV and SDTV configurations to fulfill the increasing demands for multiple global digital origination formats from almost all applications including broadcasters, filmmakers, production companies, etc. The HDC-900 Series consists of HDC-900 full size studio model color video camera and the HDC-950/930, its flawless companion portable version. Both of them were developed for both studio and outside application systems, based on several newly developed technologies applied to each

key component such as pickup device, camera head, camera control unit, and so forth.

One of the major design criteria was to easily integrate the most popular Sony digital camera control systems in order to enable the field-proven Sony camera control system and its familiar menu control systems to be used with the HDC-900/950/930, resulting in quick and reliable installation and a wide choice of camera systems implementations - from a single stand-alone camera to a sophisticated Multi- camera installation.

1-2.Advanced Digital Signal Processing (ADSP)

Easy-to-setup and highly reliable

Digital processing performs parameters in a digital memory and keeps them intact for long periods of time, resulting in a dramatic reduction of the need for operator adjustment.

With the use of digital processing, further advantages are achieved, such as to easy implementation of this circuitry in ICs and LSIs while increasing reliability.

Precise adjustment

The values of the camera set-up parameters can be defined with great precision by digital processing.

Moreover, variations between cameras, which are very difficult to avoid in analog models, can be reduced to a minimum with digital processing by simply equalizing parameter values.

Flexible signal processing and parameter settings

A significant advantage of digital processing is that it can provide very flexible operation. Many camera parameters can be controlled and each parameter setting can be varied over a wide range of values.

1-3.Sony Design Criteria

There are several important design criteria Sony has taken very seriously in the HDC-900 Series to ensure that it not only provides the features required for these new services, but also has compatibility with existing broadcast environments, and further enhances DSP (Digital Signal Processing) technology.

•True multi-standard operation from 1080/24P to analog composite (NTSC/PAL).

•The HDC-900 Series must provide higher picture quality than any conventional digital cameras. Operationally, it must be compatible with current Sony color video cameras.

•Digital system architecture should be consistent with current 12-bit digital cameras and the previous models as well so that all types can be mixed together without picture matching difficulties.

•To take full advantage of 12-bit digitization, as many camera processes as possible should be digital, particularly gamma, detail and so on.

•Operational controls and connectors are located in similar positions to those on current Sony HDC and BVP Series cameras, so operators accustomed to these models immediately find the HDC-900 Series familiar and easy to use.

•Existing Sony MSUs, CNUs and RCPs can be used with the HDC-900 Series. Current menu control systems and auto set-up functions are also compatible.

•Capital cost must not be significantly greater than Sony standard definition camera equipment.

1-4.Features of the HDC-900/950/930

Exclusive HAD sensor technology

A new design of CCD has been developed for the HDC-900, HDC-950, and HDC-930. Based on Sony HAD sensor technology and using the on-chip lens structure of the latest Power HAD™ sensors, this CCD is based on the 1920 × 1080 CIF (Common Image Format) and is switchable between progressive mode and interlace mode readout (except HDC-930 which is only available at 1080/60i and 1080/50i without progressive mode). With its light collecting capability dramatically improved, this 2/3-inch type 2.2 million- pixel FIT CCD used in the HDC-900/950 offers an industry-leading sensitivity of f10 at 2,000 lux. It has a limiting horizontal resolution of 1000 TVL/ph, a signal- to-noise ratio of 54 dB (unweighted over 30 MHz) and the outstandingly low vertical smear level of -135 dB*.

The cost effective 2/3- inch type 2.2 million-pixel IT CCD used in the HDC-930 provides equivalent performance as the FIT version CCD excluding the vertical smear level which is provided at -125 dB*

* typical numbers.

12-bit A/D conversion and ADSP (Advanced Digital Signal Processing)

The combination of 12-bit A/D conversion and the new 2.2- million sensor CCD provides excellent color rendition and overall picture quality.

The powerful ADSP circuitry enables camera set-up parameters to be adjusted over a wide range. Menus are used to select the required parameters, such as gain, gamma, flare, pedestal and detail, and with adjustments made from a central Master Set-up Unit

HDC-900/950/930 Series Product Information Manual Chapter 1 Introduction 9