Ikegami HDK-79D

Simulcast
Both HDTV video and SDTV (NTSC) are provided simultaneously from the CCU and in both digital and analog form. Monitoring video signals {WFM and PM) are likewise provided in both HDTV and SDTV to adapt to different system installations and to permit continued use of conventional monitoring.

Return Video
The CCU accepts two(2) channels of Return Video in either HDTV or SDTV format. SDI (serial digital) is standard for Return inputs, and a built-in upconverter is used to permit viewing of the standard definition return video on the high definition camera viewfinder . The CCU also accepts two(2) channels of Teleprompter Video (Q-TV1 and Q-TV2) in NTSC format. Both signals are transmitted on the camera cable and available as outputs at the studio camera head. For the portable camera either Q- TV1 or Q-TV2 can be selected for output.

Full Digital
Using newly developed digital process ICs, the video signals are digitized with 10-bit A/D conversion and up to 28-bit internal digital processing (quantization) circuits. As non-linear processing such as gamma correction is performed digitally, consistent and repetitive high picture quality and stable reliability is assured. A detail correction system, including digitally processed horizontal, vertical, and diagonal correction signal for red, green and blue video, is incorporated into the camera head, and obtains noise-free full resolution HDTV picture quality even if the camera is used in stand-alone configuration.

ASICs
New generation ASICs are incorporated, precision designed at 0.3 micro-m rule, with 3V working voltage for low power consumption and with high speed processing at 74.25MHz clock frequency.

High Picture Quality
Picture Quality is maintained for the actual operating condition, such as the resolution under high or low illumination and the S/N ratio when turning DTL and gamma on.

Component Serial Digital Transmission
Once the video signals are digitized at the pre-proc. stage of the camera head, they remain digital throughout the camera chain. Serial digital video is transmitted from camera to CCU via a fiber optic core in the camera cable. The CCU includes additional digital processing including down- conversion for simultaneous SDTV output.

HD SDI Output from the Camera Head
HD SDl output is provided from the camera head, and direct connection is possible with HD digital equipment, such as an HD VTR.

Thorough thermal management
Thermal management is implemented to control the high operating temperature associated with extensive digital processing. Additionally, parts with greater thermal resistance, s).1ch as solid-state electrolytic capacitors, are employed to provide enhanced reliability for internal components. Hurdles in terms of durability and operation are both cleared.

Flexible Optical Filter System
Both studio and portable camera types include dual motor driven 5-position optical filter wheels and electronic color temperature correction so it is easy to satisfy production requirements. Daylight color temperature can be corrected electronically so optical filter positions are available for combined filter effects.

2A Utility Outlet
The capacity of utility outlet on the studio camera is 2A to satisfy requirements of both studio and field users such as the powering of a color monitor .

Full Automatic Set Up
Consistent high quality performance is easily achieved by using the automatic set up system. Several processes including Full, Daily Level, and Quick allow the operator to rapidly align the camera to reference settings. Lens files are utilized to immediately correct for changes in the optical path such as the use of a range extender, as well as changes between different lenses. The lens file can also be programmed to make corrections for the glass of the teleprompter mirror.

Perfect Match between Studio and Portable Cameras
The portable and studio cameras use the same CCD, same analog and digital video processing, same optical filters, and in most cases, the same PC boards, providing an unparallel similarity in performance and function between the two camera types.

Optical Axis Adjustment
Both the studio and now the portable camera include a mechanism to allow precise alignment of the CCD block to the optical axis of the zoom lens. With the high resolving power of the HD sensors, optical errors become much easier to notice in the image. By adjusting for perfect optical axis alignment, the errors are minimized even when long telephoto lenses are used.

Application of Standard 2/3-inch Lenses
The camera incorporates the HDTV lens mount (BTA-S-1005B type) as standard. But the Ikegami 2/3-inch lens mount can be specified as a factory order option to use lenses from conventional NTSC Ikegami HK series cameras such as HK-388/377/366/355, etc.

Low Center of Gravity
Both the studio and portable camera are compact with low center-of-gravity. Especially for the portable camera there is excellent balance when operated on the shoulder. Regarding the 7 -inch viewfinder for HDK- 790D, the position is lower and closer to the optical axis of the camera head.

Rotating Camera Cable Connection
The SMPTE standard fibet camera cable connector is provided with a pivoting mount on both the portable and the studio camera heads. This permits a natural bend to the cable, even for example, when the portable camera is placed on the ground.

Return Switch
A Return select switch is located on the handle grip of the portable camera to control the selection when the camera is held off the shoulder, such as on the hip for low angle shots.

High Performance Viewfinders
The high definition 7-inch viewfinder attaches to the camera with a mechanism allowing easy panning and tilting for the viewfinder. As the height of the mechanism is changed to permit more tilt range, the front to rear position remains unchanged, minimizing the effect to the overall camera balance. The panning mechanism has a center detent position and also can

be locked in any position. Cable connection between camera and the 7-inch viewfinder is integrated into the pan and tilt mechanism and fully protected against damage. For the portable camera there is a choice of three viewfinders. A 2-inch 16:9 high definition viewfinder is used for portable application, providing an enlarged viewing as compared to the traditional1.5-inch viewfinder . A 5-inch and the studio standard 7-inch high definition viewfinders can be used with the portable for tripod mounted applications.

Ease of Focus for the Camera Operator
Equipped with a high frequency compensation circuit, the resolution of return video is greatly improved. The resulting VF Detail for both camera video and return video makes it much easier for the cameraman to find the optimum focus position.

Level Control for Intercom
The sound level of Intercom and Program can be switched to controls on the front of the portable camera for easy adjustment when the camera is on the shoulder or switched to the rear of the camera when the camera is on the tripod.

On-line Diagnostics
An on-line Diagnostic System monitors a range of circuits including video, control, fiber optic transmission, pulse and power supply.

High-end HDTV and NTSC Camera
Using a down converter incorporated in the CCU as standard, the HDK- 7900/790 can be operated as a high-end NTSC studio camera. A high sampling frequency of 28.64MHz achieves a maximum resolution of 900TV lines in the NTSC format.

Digital Detail Enhancement
Operating in the digital domain, the DTL system provides 3-channel enhancement for uniform sharpness of all colors. Included are conventional as well as new digital functions, not possible in analog DTL systems.

Diagonal DTL
Diagonal DTL derives an edge signal from the diagonal components of the video signal to enhance resolution. Not only horizontal and vertical edges are influenced by the detail signal, but also diagonal edges.

Skin DTL
Skin DTL softens the facial complexions of the talent while retaining the detail in the rest of the scene. The AHD (Auto Hue Detect) function facilitates Skin DTL adjustment to select a desired skin tone at the mere touch of a switch.

DTL Boost frequency
The center frequency of the horizontal detail can be shifted from 13MHz to 24MHz (2.SMHz to SMHz for NTSC) to optimize the edge enhancement for scene content. The HDK-790D/79D camera includes three separate digital DTL circuits. For stand-alone operation, the DTL of the camera will provide the full enhancement of the HDTV output from the camera. When attached to the CCU, the camera DTL system provides detail enhancement for the viewfinder, but only frequency correction for the main video, relying on the CCU to provide full and separate enhancement for the HDTV and NTSC outputs. With separate DTL systems, the type and amount of compensation can be optimized for the different requirements of HDTV and NTSC.

Fun Serial Digital Signal Interface
Three HD SDl outputs and 2 channel return HD SDI inputs are provided as standard. D-1 component serial digital signal and D-2 composite serial digital signal outputs and return video inputs are available for NTSC, and either one can be selected by internal switches.

Converter Functions
Both down converter and up converter (for return) functions are incorporated to provide compatibility with either HDTV and NTSC systems; as well as simultaneous interfacing with both systems.

Aspect Ratio Conversion
The HD outputs are always in 16:9 aspect ratio, but the down converted output can be either 16:9 or 4:3. Three modes are available for the 480i (NTSC) outputs:

There is a fixed timing relationship between the HD output and NTSC output which is approximately 42H (NTSC rate).

Return and Teleprompter Video
The CCU transmits an HD Return video signal to the camera's HD viewfinder. Also, two NTSC Q-TV video signals are sent to the camera for teleprompter and external monitoring purposes.

Component Serial Digital Transmission
A hybrid fiber / copper camera cable is used between CCU and camera head. Two single mode fibers are used for serial digital transmission in accordance with SMPTE 292M. Copper cores are used for power and power sensing. The cable conforms to SMPTE 311M and its connectors conform to SMPTE 304M. Signals and power are transmitted up to 3,000m(10,000 feet) for the HDK-79D and 2,000m(6,600 feet) for the HDK- 790D, utilizing 9.2mm(3/8") diameter camera cable. With consideration of the optical loss in both the fiber cable and the connectors, the maximum number of cable pieces used in a cable run from CCU to camera should not exceed twelve(12).

External Genlock Signal
The CCU accepts either NTSC black burst or HD sync external genlock signals. The HD sync can be 59.94 or 60Hz.

Control Panel System
The microprocessor control system for the HDK- 7900/790 features high speed direct access panels which can be configured to best meet the customer's I requirements. A typical control configuration consists of one OCP Operation Control Panel for each camera and a single MCP Maintenance Control Panel shared by a system of cameras (up to 40 cameras). The OCP-790 is available in joystick and rotary versions. It provides primary operating control, and includes new facilities such as variable control for skin detail and master gamma. The MCP-790 compliments the OCP with maintenance and secondary operating control.

Snap Shot Files with Memory Card
The "total look" of the camera can be captured by the Snap Shot File and stored on a Memory Card. The Memory Card provides a very secure long term means to restore camera set up. The Memory Card plugs into the MCP and has a capacity for 20 Snap Shoj Files. In addition, up to 240 Scene Files can be stored on a single Memory Card.