Stereophile Staff

On March 12, <A HREF="http://ovonic.com.">Energy Conversion Devices, Inc.</A> announced that <A HREF="http://www.sony.com">Sony Corporation</A> has expanded its royalty-bearing license under ECD's proprietary phase-change rewritable optical-memory technology to include advanced technology for use in rewritable CD and DVD optical-memory products. Phase-change technology, invented by ECD, is used in PD and CD-RW rewritable optical-memory discs.

March 9, <A HREF="http://www.akm.com">AKM Semiconductor, Inc.</A> introduced the AK5392, a 24-bit stereo analog-to-digital (A/D) converter based on its proprietary dual-bit delta-sigma technology. The AK5392 reportedly achieves a dynamic range of 116dB, said to be a 15dB improvement over other single-chip alternatives.

Several companies spanning the personal computer, communications, and consumer electronics industries announced March 4th the formation of a working group that will develop a specification for wireless communications in the home. This specification will allow PCs, peripherals, cordless telephones, and consumer electronic devices to communicate and interoperate with one another.

The Crystal Semiconductor Products Division of Cirrus Logic Inc. announced last week the availability of the industry's first digital audio transmitters and receivers designed to support the emerging 96kHz digital audio sampling rate. The new mixed-signal receivers and transmitters are targeted at both the professional audio and consumer DVD audio markets.

Last week, <A HREF="http://www.intel.com">Intel Corporation</A> announced its membership in the DVD WG-4 Audio Working Group, and its support for the proposed DVD audio specification, as the next steps in bringing next-generation consumer-quality audio to the PC platform.

On February 18, <A HREF="http://www.harman.com">Harman International Industries Inc.</A> announced that it had signed two licensing agreements with <A HREF="http://www.nxt.co.uk">New Transducers Limited</A> (NXT) relating to NXT's flat-panel loudspeaker technology.

This week, <A HREF="http://www.burr-brown.com">Burr-Brown</A&gt; Corporation announced the PCM1733, a low-cost, CD-quality audio digital-to-analog converter (DAC) designed for high-volume, mass-market consumer audio applications.