 NEW YORK--BUSINESS WIRE--Halper Sadeh LLP, a global investor rights law firm, is investigating whether the sale of DSP Group, Inc. NASDAQ: DSPG to Synaptics Incorporated for 22.00 per share in cash is fair to DSP Group shareholders. Halper Sadeh encourages DSP Group shareholders to click here to learn more about their legal rights and options or contact Daniel Sadeh or Zachary Halper at 212 763-0060 or or The investigation concerns whether D 