Press Release

Qualcomm CDMA Technologies Introduces PureVoice Audio AGC Software Solution to Optimize CDMA Handset Sound Quality

Jul 20, 1999SAN DIEGO

Qualcomm products mentioned within this press release are offered by Qualcomm Technologies, Inc. and/or its subsidiaries.

SAN DIEGO -- July 20, 1999 -- Qualcomm Incorporated (Nasdaq: QCOM), pioneer and world leader of Code Division Multiple Access (CDMA) digital wireless technology, today introduced audio enhancement software technology for the MSM3000™ and MSM3100™ Mobile Station Modem (MSM™) platforms that significantly improves the already superior sound quality available to users of CDMA handsets. The PureVoice™ Audio AGC software, developed by Qualcomm CDMA Technologies, is a complete audio enhancement solution that will enable CDMA manufacturers to develop superior sounding handsets without additional hardware costs.

"Our new PureVoice Audio AGC software provides our manufacturing partners with immediate, measurable performance improvements in speech quality for their handsets," said Johan Lodenius, vice president of marketing of Qualcomm CDMA Technologies. "Implementing our software solution at the design stage ensures cost savings to manufacturers, and superior sound quality for consumers that buy their handsets."

The PureVoice Audio AGC software is a suite of highly advanced DSP algorithms performing three distinctive functions to compensate for less than ideal handset usage conditions. The forward link automatic gain control, the forward link volume control, and the reverse link limiter functions combined into a single software package provide a complete audio enhancement solution that allows for better sounding calls on CDMA handsets in adverse background noise conditions.

Forward link automatic gain control greatly enhances the speech quality of an incoming call. Wireless handset users often have difficulty finding the right sound level for inbound calls due to variations in the land side speaker's voice loudness, variations in loudness of automated voice-mail recordings, and loudness variations in analog phone and landline signals. PureVoice Audio AGC software minimizes these effects by dynamically tracking changes in the forward link audio signal and normalizing output gain levels, thus providing an ideal audio output gain level in a variety of conditions.

The software's forward link automatic volume control tracks the background noise levels in the user's operating environment and automatically adjusts the volume level best suited for the situation. By dynamically adding up to a +24dB digital gain to the handset volume level, handset users can still experience call clarity regardless of background noise levels without manually adjusting the volume control. This feature makes wireless handsets more convenient to use.

The reverse link limiter (RLL), another important feature of PureVoice Audio AGC, can make a handset sound better to landline listeners for wireless calls made under noisy conditions. The natural reaction for wireless callers in loud settings is to "talk over" background noise. This situation results in clipping and over saturation, common side effects that degrade the overall voice quality of the caller. PureVoice Audio AGC's RLL compensates for this scenario without affecting normal input volume levels. RLL prevents clipping and over saturation of the handset's audio signal to ensure call clarity.

Qualcomm's PureVoice Audio AGC software is optimized for both the MSM3000 and MSM3100 platforms and will be available for the MSM3000 in Q4 1999. The industry-leading MSM3000 is the only currently available hardware and software solution to support IS-95B with data rates up to 86.4kbps and to provide 200 hours of standby time. Qualcomm's sixth-generation, the MSM3100 chipset and system software will sample in the third quarter of 1999.

Qualcomm CDMA Technologies is the leading developer and supplier of CDMA chipsets, hardware and software solutions and tools with more than 50 million MSM chips shipped worldwide. The division supplies chipsets to the world's leading CDMA handset and infrastructure manufacturers including: ALPS ELECTRIC CO., LTD.; CASIO COMPUTER CO., LTD.; DENSO CORPORATION; FUJITSU LIMITED; Hitachi, Ltd.; Hyundai Electronics Industries Co., Ltd.; KYOCERA CORPORATION; LG Information and Communications, Ltd.; Samsung Electronics Ltd.; SANYO Electric Co., Ltd.; and Toshiba Corporation, among others.

Qualcomm Incorporated ( is a leader in developing and delivering innovative digital wireless communications products and services based on the Company's CDMA digital technology. The Company's major business areas include CDMA phones; integrated CDMA chipsets and system software; technology licensing; and satellite-based systems including OmniTRACS® and portions of the Globalstar™ system. Headquartered in San Diego, Calif., Qualcomm is a FORTUNE 500® company traded on the Nasdaq under the ticker symbol QCOM.

Except for the historical information contained herein, this news release contains forward-looking statements that are subject to risks and uncertainties, including timely product development, the Company's ability to successfully manufacture significant quantities of CDMA or other equipment on a timely and profitable basis, and those related to performance guarantees, change in economic conditions of the various markets the Company serves, as well as the other risks detailed from time to time in the Company's SEC reports, including the report on Form 10-K for the year ended September 27, 1998, and most recent Form 10-Q.

Qualcomm and OmniTRACS are registered trademarks of Qualcomm Incorporated. MSM, MSM3000, MSM3100 and PureVoice are trademarks of Qualcomm Incorporated. Globalstar is a trademark of Loral Qualcomm Satellite Services, Incorporated.