Introduction; Signal Flow And Processing - GE Vivid 7 Service Manual

GE H
EALTHCARE
D FC091194, R
IRECTION EVISION
5-4-2

Introduction

The Back-End Processor is a computer designed specially for the use in the Vivid 7 ultrasound scanners
made by GE.
The following BEP versions have been used for Vivid 7:
• BEP1 was introduced at the introduction of the Vivid 7 ultrasound scanners in 2001.
• BEP2 was introduced September 2002 as a replacement for BEP1, both for new ultrasound
scanners from factory and for service replacement in the field.
A special BEP4 version is available as replacement unit for BEP2.
• BEP2.2 was introduced 2nd half of 2003 and is used in units with RFI.
A special BEP4 version is available as replacement unit for BEP2.2.
• BEP3 was introduced with software version v4.0, 2nd half of 2004. Supports the 3D/4D option.
• BEP3.2 and BEP4.2 supports Patient I/O with internal USB interface. Supports the 3D/4D option.
• BEP4.x supports Patient I/O both with USB1.1 and USB2.0 interface. MO drive is an option.
The BEP4 is delivered in several different variants:
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NOTE: When the descriptions in this section applies only to one or some of the BEPs, it will be marked
in the text with BEP1, BEP2, BEP2.2, BEP3, BEP3.2, BEP4.2 or BEP4.3.
An "x" as in "BEP3.x" indicates that both BEP3 and BEP3.2 are covered.
5-4-3

Signal Flow and Processing

The Back-End Processor receives the data from the Front-End electronics, stores it in memory,
performs scan conversion to pixel domain, and drives the system RGB monitor.
Back-End Processor software is also processing the Color Flow, Doppler, M-Mode and 4D data.
• BEP4.2 without 3D/4D:
See
• BEP4.2 with 3D/4D:
See
• BEP3 without 3D/4D:
See
• BEP3.2 with 3D/4D:
See
• BEP3.2 without 3D/4D:
See
• BEP3 with 3D/4D:
See
• BEP2.2:
See
• BEP2:
See
• BEP1:
Figure 5-56 "CPU/Back-End Processor Block Diagram (BEP1)" on page
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BEP4.3 without 4D for use in new systems (introduced with BT'08) (wo/4D).
BEP4.3 with 4D for use in new system (introduced with BT'08) (w/4D).
BEP4.2 without 4D for use in new systems and as a replacement for BEP3.x (wo/4D).
BEP4.2 with 4D for use in new systems and as a replacement for BEP3.x (w/4D).
BEP4 for use as a replacement for BEP2.2.
BEP4 for use as a replacement for BEP2.
Figure 5-46 "CPU/Back-End Processor Block Diagram (BEP4.2 without 4D)" on page
Figure 5-47 "BEP4.2 with 4D (Replacement for BEP3.2 w/4D) - Block Diagram" on page
Figure 5-50 "CPU/Back-End Processor Block Diagram (BEP3.2 without 3D)" on page
Figure 5-51 "CPU/Back-End Processor Block Diagram (BEP3.2 with 3D)" on page
Figure 5-52 "CPU/Back-End Processor Block Diagram (BEP3 without 3D)" on page
Figure 5-53 "CPU/Back-End Processor Block Diagram (BEP3 with 3D)" on page
Figure 5-54 "CPU/Back-End Processor Block Diagram (BEP 2.2)" on page
Figure 5-55 "CPU/Back-End Processor Block Diagram (BEP 2)" on page
Section 5-4 - Back-End Processor (BEP)
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