Wednesday, March 10th, 2021

Time	Event
12:50a	Polymer Cables Could Replace Thunderbolt and USB, Deliver More Than Twice the Speed New submitter Obipale shares a report from Apple Insider: Researchers are working on a cabling system that could provide data transfer speeds multiple times faster than existing USB connections using an extremely thin polymer cable, in a system that echoes the design path of Thunderbolt. Presented at the February IEEE International Solid-State Circuits Conference, the research aims to develop a connection type that offers far better connectivity than current methods. In part, it aims to accomplish this by replacing copper wiring with something else. Copper is typically used for wires like USB and HDMI to handle data transfers, but it requires a lot of power to work for high levels of data transmission. "There's a fundamental tradeoff between the amount of energy burned and the rate of information exchanged," said MIT alumni and lead author Jack Holloway. While the "increasingly bulky and costly" copper could be replaced by fiber optic cables, that introduces its own issues. As silicon chips have difficulty dealing with photons, this makes the interconnection between the cable and the computers more challenging to optimize. Combining the benefits of copper and fiber optic conduits, a plastic polymer is used by the researchers. This makes it cheaper to manufacture than copper wires, which could be an attractive proposition for cable producers. The polymer can also use sub-terahertz electromagnetic signals, which is more energy-efficient than copper at high data loads. It is believed this efficiency brings it close to that of fiber optic systems, but crucially with better compatibility with silicon chips. Low-cost chips are paired with the polymer conduit that can generate the high-frequency signals powerful enough to transmit into the conduit directly. As such, the system is expected to be manufactured with standard methods, which also makes it cost-effective to produce. The cables themselves can also be extremely thin, with the cross-sectional area of the interconnect measuring 0.4 millimeters by a quarter millimeter, smaller than typical copper variants. That small hair-like cable can be used to transport data over three different parallel channels, enabling it to achieve a total bandwidth of 105 gigabits per second. Bundling conduits together could bring the cables into the terabit-per-second range, while still remaining at a reasonable cost. Read more of this story at Slashdot. (Comment on this)
2:10a	HTC Now Seems To Be Teasing Vive Lip-Tracking HTC's latest tease on its Twitter account looks related to the lip-tracking module for its Vive headsets. UploadVR reports: Paired with last week's tease that included the message "It's your move," plus numerous replies that use the word 'tracking' and even a more recent reference to Avatar, it certainly seems like HTC is teasing new add-ons for its existing Vive headsets, rather than an all-new device. HTC revealed the lip-tracking module for Vive all the way back at GDC 2019. At the time the company said it had no plans for a full release of the device. The kit hangs below the headset and reads movement in your mouth, which a given experience could then use to replicate on a virtual avatar of yourself. Paired with the eye-tracking in the HTC Vive Pro Eye, it's feasible that HTC could soon be bringing very expressive virtual avatars to VR. Go a step further and implement the Vive Trackers for full-body tracking, and there's a lot of potential here. Read more of this story at Slashdot. (Comment on this)
1:00p	Apple Planning Switch To Randomized Serial Numbers Starting This Year An anonymous reader quotes a report from MacRumors: Apple will soon be making a significant change to its serial number format for future products that will see some key information stripped out. In an internal AppleCare email this week, obtained by MacRumors, Apple said the new serial number format will consist of a randomized alphanumeric string of 8-14 characters that will no longer include manufacturing information or a configuration code. Apple said the serial number format transition is scheduled for "early 2021," and confirmed that IMEI numbers will not be affected by this change. Any currently shipping Apple products will continue to use the current serial number format, while future products will use the new format, according to Apple. The new serial numbers will initially be 10 characters, the company indicated. Apple's current serial number format has long allowed both customers and service providers to determine the date and location that a product was manufactured, with the first three characters representing the manufacturing location and the following two indicating the year and week of manufacture. The last four characters currently serve as a "configuration code," revealing a device's model, color, and storage capacity. Apple initially planned to transition to the new serial number format in late 2020, but delayed. Apple hasn't explained the reasons for the change, but the new format will effectively make it impossible to view details about when and where a device is manufactured. Read more of this story at Slashdot. (Comment on this)

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