Motorola sued by Hytera for patent infringement

Hytera Communications Corporation is suing Motorola Solutions for patent infringement.

The company is asserting that Motorola has infringed Hytera’s US Patent No. 9,183,846, which covers its sound adjustment control technology. Motorola has been accused of unlawfully misappropriating the technology for sound adjustment, incorporating it into its MOTOTRBO portable radios.

Hytera’s patent is its inventive method for adjusting sound volume in response to background or ambient noise, allowing a radio operator to hear and speak over it. The device obtains the current level of ambient noise, receives an instruction and adjusts sound output. If ambient noise is high, the volume adjustment is greater at higher (treble) frequencies.

Hytera further claims that Motorola has been, and still is, indirectly infringing its patent by actively inducing direct infringement by other persons who use products that embody one or more of the claims of the patent. The company asserts that Motorola had knowledge of the patent, knew or should have known that its actions would induce direct infringement by others, and intended that its actions would induce such direct infringement. Hytera is also alleging contributory infringement. It is seeking damages and will pursue further relief as appropriate.

“Motorola Solutions is infringing Hytera’s sound adjustment control patent,” said Andrew Yuan, Hytera’s president of North and South America.

“Hytera is a leader in innovative technologies and an adamant advocate of intellectual property rights. We will look to enforce our patents in court in the US and worldwide.”

Hytera filed its lawsuit in the US District Court for the Northern District of Ohio. The company currently holds 480 issued patents, including 269 patents for digital products (DMR, TETRA and PDT).

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