Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
1999-03-31
2001-10-02
Picard, Leo P. (Department: 2835)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S689000, C361S689000, C361S726000, 36
Reexamination Certificate
active
06297955
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates generally to integrated computer modules and, more specifically, to the construction of a host assembly and a docking bay in a host assembly for receiving and retaining an integrated computer module.
2. Description of the Related Art
Today's personal computers (PC's) are usually sold in a desktop configuration or a notebook configuration. Desktop PC's are generally housed in a relatively large chassis containing a main printed circuit board or “motherboard” and other components that are incorporated into or connected to the motherboard. The components may be located inside or outside of the chassis. Typical internal components include a power supply, a central processing unit (CPU), random access memory (RAM), a mass storage device such as a magnetic disk drive, expansion cards connected to a bus on the motherboard, and various peripherals mounted on “rails” in “bays” within the chassis and electrically connected to the motherboard or an associated expansion card by a ribbon cable or the like. Typical expansion cards are a SCSI adapter, a sound adapter, and a network adapter. Typical bay-mounted peripherals are a magnetic disk drive, a floppy drive, a tape drive or a CD-ROM drive. Typical external “peripherals” include user input devices such as a keyboard, a mouse, a microphone, a joystick, a graphics tablet or a scanner) and user output devices such as speakers a printer, and a video display device (e.g. a CRT display or an LCD display). The video adapter that drives the display, as with other adapters, may be integrated into the motherboard or provided on a separate expansion card.
The users of desktop PC's may be divided into two divergent groups: (1) experienced users who understand the individual components and tend to frequently upgrade their PC's by replacing such components, and (2) new users who do not understand or even want to understand the individual components. The latter group may prefer to replace the entire PC, if they upgrade at all. With respect to both groups, however, it has been observed that the need or desire to upgrade occurs far sooner with respect to some components than with respect to other components. In particular, users more frequently upgrade the CPU, the RAM, the magnetic disk drive, and the video adapter. These upgrades tend to provide more capacity and more speed because of rapid technological advancements on the part of manufacturers in response to ever-increasing demands from ever more complicated and more graphics intensive software applications and an associated increase in file sizes. Both user-types less frequently need or desire to upgrade the monitor, the speakers, the keyboard or the power supply, however, because these latter components have withstood the test of time and employ technologies that are less prone to obsolescence.
These inventors expect that the computer paradigm will move from a large chassis full of individual components of different manufacture toward a readily upgraded system consisting of two primary components: (1) an integrated computer module that compactly houses the frequently upgraded components (e.g. the CPU, the memory, the disk drive, and the video adapter) and provides a module connector for interfacing the module's electronics with peripherals, and (2) a “host assembly” with a docking bay that receives the module and provides a host connector that mates with the module connector. The host assembly can comprise any “shell” that includes the bay that receives the integrated computer module. The docking bay may be in a host assembly that doubles as a peripheral or in an intermediate assembly that is connected to conventional peripherals. The host assembly, for example, may function and appear generally like a conventional CRT display, save for the addition of the docking bay. A CRT-like host assembly of this nature would also provide a first connector for receiving input from a keyboard and, in all likelihood, a second connector for receiving input from a mouse. As another example, the host assembly may appear like a conventional tower chassis that contains a docking bay for receiving the module, and suitable electronics (e.g. a PCB, cables, and so on) to interface the integrated computer module to conventional expansion cards via an expansion bus, and to conventional peripherals like a display, a keyboard, and a mouse, via connector ports built-in to the host assembly or carried by an expansion card.
Computer modules and associated bays have already been proposed. For example, in U.S. Pat. No. 5,463,742 that issued to Kobayashi in 1995, assigned to Hitachi, the inventor discloses a “personal processor module” (PPM) that fits within a notebook type docking station or a desktop type docking station, or simply attaches to a docking housing 6 that is cabled to a keyboard and a monitor. (See FIG.
1
). In FIG. 18, the '742 Patent shows a docking station containing a rectangular bay (not numbered) that receives the PPM 130. The '742 patent, however, does not further align the module after it enters the docking bay and before the module connector engages the host connector. Moreover, it discloses a complex mechanism for retaining the module in the docking bay. In particular, FIGS. 19-22 of the '742 Patent reveal arms 134, 136 that grab the sides of the PPM and pull it into the docking stations until the PPM connector 22 mates with the internal connector 24.
In U.S. Pat. No. 5,550,710 that issued in 1996 to Rahamim et al., also assigned to Hitachi, the inventors disclose a particular cooling structure for a PPM, but teach very little about the docking bay that receives the PPM.
There remains a need, therefore, for a host assembly having a docking bay with a simple, rugged mechanism for receiving and retaining the module in the docking bay while maintaining electrical integrity and continuity required to meet standards for emissions and electrostatic discharge.
SUMMARY OF THE INVENTION
In a first aspect, the invention may be regarded as a host assembly for fully receiving an integrated computer module that is in a correct orientation and for only partially receiving a module that is in an incorrect orientation, the module having a front wall and back wall opposite the front wall, having a substantially rectangular module end periphery defined by a floor wall, a ceiling wall opposite the floor wall, a first side wall, and a second side wall opposite the first side wall, and having a module connector located at an XY connector location on the back wall when the module is in a correct orientation, the module containing a head disk assembly, random access memory, and a printed circuit board assembly (PCBA) carrying a plurality of integrated circuits that constitute substantially all of the integrated circuits needed to define a microprocessor-based computing subsystem, the docking bay comprising: a chassis including a power supply, at least one input connector port for attachment to an input device, and at least one output connector for attachment to an output device; a cavity located in the chassis and adapted for receiving and grossly aligning the module, the caving defined by a front opening, a back end opposite the front opening, and a substantially rectangular cavity profile that is slightly larger than the substantially rectangular module profile; a host connector electrically connected to the power supply, the at least one input connector, and the at least one output connector, the host connector located at the XY connector location at the back end of the cavity, the host connector being substantially correctly aligned with the module connector only when the module is received in the cavity in the correct orientation; and a projecting member located at an asymmetric XY location at the back end of the cavity for ensuring that the cavity only receives a module that is in the correct orientation and for more finely aligning the host connector with the module connector, the projecting member e
Frank, Jr. Charles W.
Hanan Thomas D.
Szeremeta Wally
Picard Leo P.
Shara Milas G
Vortman Anatoly
Western Digital Ventures, Inc.
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