AOP Code: RIMM 055
Exp: 09/30/09
Categories: TECHNOLOGY
Industry: TECHNOLOGY - TELEPHONE APPARATUS

SPEECH PROCESSING - RIMM

The '055 Patent relates generally to a speech processing system, and more particularly to accounting for periodicity when the pitch period is shorter than the adaptive and fixed codebook vectors. The '485 Patent relates generally to a speech processing system, and more particularly to the ways in which speech decoders conceal data losses due to transmission errors.

Basis for Selection:

A lawsuit is pending with the patent holder Research in Motion claiming patent infringement by Motorola. Research in Motion has declared that the patents are essential to various standards and recommendations developed by ETSI and ITU.

Guideline Patent Number: 5,664,055 | Latest Date for Prior Art: January 01, 1995

Guideline Patent Filing Date: June 07, 1995| Owner(s): Research in Motion

Interested Parties: Motorola Inc.

Multiple Patent Study Description:

This patent study is for multiple patents. The patents are US 5.664,055 (the ‘055 Patent) and US 5,699,485 (the ‘485 Patent). The ‘485 Patent is related to the ‘055 Patent because the disclosure of the patent application that issued as the ‘055 Patent was incorporated by reference into patent application Ser. No. 08/482/715 that issued as the ‘485 Patent.

Description:

Prior art which can show the Study patents to be invalid has already been identified. This Study is a request for additional prior art that provides additional paths to invalidity for the Study patents. The Reward is payable to the Advisor community if the Study results in one or more prior art references that provide an additional path to invalidity either based on the AOP Study prior art alone or the AOP Study prior art in combination with known prior art. See the link "Existing Prior Art" for a list of the known art which is not eligible for the award.

Prior art filed in the following re-examination proceedings is not eligible for the award: 90/010,582 and 90/010,581.

The ‘055 Patent:
In accordance with an embodiment of the invention in the '055 Patent, a speech processing system which includes an adaptive codebook and a fixed codebook coupled to a pitch filter, is adapted to determine the pitch filter gain based on a delayed adaptive codebook gain.

The ‘485 Patent:
In accordance with an embodiment of the invention in the '485 Patent, a speech decoder that fails to receive a portion or all of two consecutive frames of speech data stores pitch period information for the first erased frame, and then increments that value for the second erased frame.

This is a Multiple Patent Study

You can view the included patents below:
Patent #: 5,664,055 (View Details | PDF | Word)
Patent #: 5,699,485 (View Details | PDF | Word)

Known Prior Art: view/download