Exhibit 10.16

CERTAIN INFORMATION IN THIS EXHIBIT HAS BEEN OMITTED AND FILED SEPARATELY WITH
THE COMMISSION.  CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO THE
OMITTED PORTIONS.


                       JOINT PATENT FILING AGREEMENT

This Memorandum of Understanding is made and entered into effect as of this
1st day of December, 1998, by and between Matsushita Communication Industrial
Company Limited, a Japanese corporation having its principal place of
business at 4-3-1, Tsunashima Higashi, Kohokuku, Yokohama 223 Japan
(hereinafter referred to as MCI) and UT Starcom, Inc., a Delaware corporation
having its principal place of business at 1275 Harbor Bay Parkway, Suite 100,
Alameda, California 94502, USA (hereinafter referred to as UTS), in order to
set forth the basic understanding between the parties regarding patent
application of [*].

Whereas, MCI and UTS have cooperated in devising certain [*], which is deemed
to be eligible for patent application.

Whereas, MCI and UTS is eager to apply for patent regarding this [*] in [*]
and with the consent of both parties, in any other third country.

Now therefore, in consideration of the foregoing paragraphs, MCI and UTS
agree as follows:

    1)  UTS shall immediately file the said patent application in [*].

    2)  Matsushita Electric Industrial Co., Ltd. (hereinafter referred to as
        MEI), which is the parent company of MCI, shall file a patent
        application corresponding to the said patent in [*] and with the
        consent of UTS, in any other third country, six months after the
        application of the said patent in [*] by UTS, and/ or after the
        necessary approval of [*] regulatory authorities.

    3)  The total cost of necessary application fees shall be [*] between MCI
        and UTS.

    4)  Either party, when supplying [*] utilizing the said patent to any
        other third party, shall require the prior written consent of the
        other party, but shall be free of any compensation, including but not
        limited to royalty payment.

    5)  Both parties must consent in writing when licensing the said patent
        to any other third party, and any royalty income collected as the
        result shall be shared equally among the two parties.

In witness whereof, the parties hereto have caused this Agreement to be
executed by their respective duly authorized representatives, effective as of
the date first above written.

Matsushita Communication Industrial Co., Ltd.     UT Starcom, Inc.

Signed:  /s/ M. Akiyama                           Signed:  /s/ Paul Berkowitz
- --------------------------------------------------------------------------------
Name:        M. Akiyama                           Name         Paul Berkowitz
- --------------------------------------------------------------------------------
Title:   Senior Managing Director                 Titles    VP Product Planning
- --------------------------------------------------------------------------------
Date:    November 30, 1998                        Date:        9 Nov 98
- --------------------------------------------------------------------------------


[*] = CERTAIN INFORMATION ON THIS PAGE HAS BEEN OMITTED AND FILED SEPARATELY
WITH THE COMMISSION.  CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO
THE OMITTED PORTIONS.