<informationTable xmlns="http://www.sec.gov/edgar/document/thirteenf/informationtable">		<infoTable>
			<nameOfIssuer>2U INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>90214J101</cusip>
			<value>15844</value>
			<shrsOrPrnAmt>
				<sshPrnamt>492200</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>492200</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>ACTIVISION BLIZZARD INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>00507V109</cusip>
			<value>39438</value>
			<shrsOrPrnAmt>
				<sshPrnamt>1629000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>1629000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>AMERICAN TOWER CORP NEW</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>03027X100</cusip>
			<value>16792</value>
			<shrsOrPrnAmt>
				<sshPrnamt>180000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>180000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>BAIDU INC</nameOfIssuer>
			<titleOfClass>SPON ADR REP A</titleOfClass>
			<cusip>056752108</cusip>
			<value>25880</value>
			<shrsOrPrnAmt>
				<sshPrnamt>130000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>130000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>CADENCE DESIGN SYSTEM INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>127387108</cusip>
			<value>16613</value>
			<shrsOrPrnAmt>
				<sshPrnamt>845000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>845000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>CHINA UNICOM (HONG KONG) LTD</nameOfIssuer>
			<titleOfClass>SPONSORED ADR</titleOfClass>
			<cusip>16945R104</cusip>
			<value>2512</value>
			<shrsOrPrnAmt>
				<sshPrnamt>160000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>160000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>DEMAND MEDIA INC</nameOfIssuer>
			<titleOfClass>COM NEW</titleOfClass>
			<cusip>24802N208</cusip>
			<value>270</value>
			<shrsOrPrnAmt>
				<sshPrnamt>42400</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>42400</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>ELLIE MAE INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>28849P100</cusip>
			<value>16052</value>
			<shrsOrPrnAmt>
				<sshPrnamt>230000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>230000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>EQUINIX INC</nameOfIssuer>
			<titleOfClass>COM PAR $0.001</titleOfClass>
			<cusip>29444U700</cusip>
			<value>8890</value>
			<shrsOrPrnAmt>
				<sshPrnamt>35000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>35000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>EXPEDIA INC DEL</nameOfIssuer>
			<titleOfClass>COM NEW</titleOfClass>
			<cusip>30212P303</cusip>
			<value>49754</value>
			<shrsOrPrnAmt>
				<sshPrnamt>455000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>455000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>HIMAX TECHNOLOGIES INC</nameOfIssuer>
			<titleOfClass>SPONSORED ADR</titleOfClass>
			<cusip>43289P106</cusip>
			<value>26098</value>
			<shrsOrPrnAmt>
				<sshPrnamt>3250000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>3250000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>HYDRA INDS ACQUISITION CORP</nameOfIssuer>
			<titleOfClass>UNIT 10/20/2021</titleOfClass>
			<cusip>448740209</cusip>
			<value>3012</value>
			<shrsOrPrnAmt>
				<sshPrnamt>300000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>300000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>IAC INTERACTIVECORP</nameOfIssuer>
			<titleOfClass>COM PAR $.001</titleOfClass>
			<cusip>44919P508</cusip>
			<value>42618</value>
			<shrsOrPrnAmt>
				<sshPrnamt>535000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>535000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>IMMERSION CORP</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>452521107</cusip>
			<value>32942</value>
			<shrsOrPrnAmt>
				<sshPrnamt>2600000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>2600000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>INTERDIGITAL INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>45867G101</cusip>
			<value>50348</value>
			<shrsOrPrnAmt>
				<sshPrnamt>885000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>885000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>ISHARES TR</nameOfIssuer>
			<titleOfClass>RUSSELL 2000 ETF</titleOfClass>
			<cusip>464287655</cusip>
			<value>218470</value>
			<shrsOrPrnAmt>
				<sshPrnamt>1750000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<putCall>Put</putCall>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>1750000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>JD COM INC</nameOfIssuer>
			<titleOfClass>SPON ADR CL A</titleOfClass>
			<cusip>47215P106</cusip>
			<value>10939</value>
			<shrsOrPrnAmt>
				<sshPrnamt>320795</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>320795</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>LIONS GATE ENTMNT CORP</nameOfIssuer>
			<titleOfClass>COM NEW</titleOfClass>
			<cusip>535919203</cusip>
			<value>10004</value>
			<shrsOrPrnAmt>
				<sshPrnamt>270000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>270000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>LIVEPERSON INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>538146101</cusip>
			<value>11153</value>
			<shrsOrPrnAmt>
				<sshPrnamt>1136861</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>1136861</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>LORAL SPACE &amp; COMMUNICATNS I</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>543881106</cusip>
			<value>55553</value>
			<shrsOrPrnAmt>
				<sshPrnamt>880125</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>880125</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>LUMOS NETWORKS CORP</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>550283105</cusip>
			<value>12572</value>
			<shrsOrPrnAmt>
				<sshPrnamt>850000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>850000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>MADISON SQUARE GARDEN CO</nameOfIssuer>
			<titleOfClass>CL A</titleOfClass>
			<cusip>55826P100</cusip>
			<value>29722</value>
			<shrsOrPrnAmt>
				<sshPrnamt>356000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>356000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>MARVELL TECHNOLOGY GROUP LTD</nameOfIssuer>
			<titleOfClass>ORD</titleOfClass>
			<cusip>G5876H105</cusip>
			<value>38896</value>
			<shrsOrPrnAmt>
				<sshPrnamt>2950000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>2950000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>MELLANOX TECHNOLOGIES LTD</nameOfIssuer>
			<titleOfClass>SHS</titleOfClass>
			<cusip>M51363113</cusip>
			<value>33053</value>
			<shrsOrPrnAmt>
				<sshPrnamt>680233</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>680233</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>MKS INSTRUMENT INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>55306N104</cusip>
			<value>27029</value>
			<shrsOrPrnAmt>
				<sshPrnamt>712408</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>712408</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>NEW MEDIA INVT GROUP INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>64704V106</cusip>
			<value>21068</value>
			<shrsOrPrnAmt>
				<sshPrnamt>1175000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>1175000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>PDF SOLUTIONS INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>693282105</cusip>
			<value>15405</value>
			<shrsOrPrnAmt>
				<sshPrnamt>962811</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>962811</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>SHUTTERFLY INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>82568P304</cusip>
			<value>11465</value>
			<shrsOrPrnAmt>
				<sshPrnamt>239803</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>239803</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>TAKE-TWO INTERACTIVE SOFTWAR</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>874054109</cusip>
			<value>27570</value>
			<shrsOrPrnAmt>
				<sshPrnamt>1000000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>1000000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>TELEFONICA BRASIL SA</nameOfIssuer>
			<titleOfClass>SPONSORED ADR</titleOfClass>
			<cusip>87936R106</cusip>
			<value>7801</value>
			<shrsOrPrnAmt>
				<sshPrnamt>560000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>560000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>TESSERA TECHNOLOGIES INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>88164L100</cusip>
			<value>36195</value>
			<shrsOrPrnAmt>
				<sshPrnamt>953000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>953000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>TOWNSQUARE MEDIA INC</nameOfIssuer>
			<titleOfClass>CL A</titleOfClass>
			<cusip>892231101</cusip>
			<value>1969</value>
			<shrsOrPrnAmt>
				<sshPrnamt>145000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>145000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>TREMOR VIDEO INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>89484Q100</cusip>
			<value>2146</value>
			<shrsOrPrnAmt>
				<sshPrnamt>737517</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>737517</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>UNWIRED PLANET INC NEW</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>91531F103</cusip>
			<value>3256</value>
			<shrsOrPrnAmt>
				<sshPrnamt>5252000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>5252000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>WEBMD HEALTH CORP</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>94770V102</cusip>
			<value>61992</value>
			<shrsOrPrnAmt>
				<sshPrnamt>1400000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>1400000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>WEBMD HEALTH CORP</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>94770V102</cusip>
			<value>15498</value>
			<shrsOrPrnAmt>
				<sshPrnamt>350000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<putCall>Call</putCall>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>350000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>XO GROUP INC</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>983772104</cusip>
			<value>18557</value>
			<shrsOrPrnAmt>
				<sshPrnamt>1135000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>OTR</investmentDiscretion>
			<otherManager>1</otherManager>
			<votingAuthority>
				<Sole>1135000</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
</informationTable>
