My 320 GB WD My Passport Essential hard drive is not getting recognized in Windows. Windows 7 says that USB device is not recognized.
I tried different laptops, usb ports and cables and no luck. I opened up the hard drive casing and the 2.5” internal hard drive inside
seems to have a proprietary interface as in this link - http://i38.tinypic.com/ngwpcw.jpg
Is there any way to connect to this hard drive and recover my data?

No (at your level if the drive itself is failing).

The drive, when connected is spinning and the light is on. No noise and nothing unusual. Something is messed up!

Need at least a decent diagnose.

This 320 GB external WD My passport hard drive when connected to my Windows 7 laptop gives an error message that "USB Device not recognized". I tried a Y cable from WD and no luck. I ran the Microsoft's UVCView and it gave the below. Will this help? Thanks for your input...

---===>Device Information<===---

ConnectionStatus: FailedEnumeration
Current Config Value: 0x00 -> Device Bus Speed: Low
Device Address: 0x00
Open Pipes: 0
*!*ERROR: No open pipes!

===>Device Descriptor<===
*!*ERROR: bLength of 0 incorrect, should be 18
bLength: 0x00
bDescriptorType: 0x00
bcdUSB: 0x0000
bDeviceClass: 0x00
*!*ERROR: Device enumeration failure
....

no I mean the drive.

Tarot cards says that 99% disk has dead chip Initio INIC-1607E.
Also its says : Wait for financial losses and Look for the right guy.

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Angel Data Recovery

I don't know if a dry solder joint at the DATA+ or DATA- pins would produce the stated symptoms, but I would rule this out first. To this end I would attach the USB cable to the drive and perform and end-to-end continuity test for each pin, using a multimeter set to the 200 ohms resistance range.

Here are the pinouts:
http://pinouts.ru/Slots/USB_pinout.shtml

If that is OK, then I would locate the data and clock pins for the serial EEPROM this is attached to the Initio bridge chip on the drive's PCB. Open either pin and then examine the UVCView report. Some (all?) bridge chips will identify themselves with the Product ID and Vendor ID of the chip manufacturer if they are unable to detect an external EEPROM. If the chip has sanity, then this may give you a clue as to the problem. I expect that you should be able to do this with the board removed from the drive.

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A backup a day keeps DR away.

Try a different computer. I could not get my wd to recognize on my older laptop but worked fine on newer computer